Physics Book - User contributions [en]

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2016-04-16T03:46:04Z

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2016-04-16T03:44:27Z

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2016-04-16T03:44:18Z

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2016-04-16T03:31:59Z

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2016-04-16T03:28:59Z

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2016-04-16T03:27:03Z

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2016-04-16T03:24:23Z

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Steady State

2016-04-16T03:23:52Z

Nfortingo3: /* Middling */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:EasyProblem.png]]

[[File:EasyAnswerPhysicsBook.jpeg]]

===Difficult===
[[File:HardProblem.png]]

[[File:HardAnswerPhysicsBook.jpeg]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-16T03:23:28Z

2016-04-16T03:16:32Z

Nfortingo3: /* Examples */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:EasyProblem.png]]

[[File:EasyAnswerPhysicsBook.png]]

===Difficult===
[[File:HardProblem.png]]

[[File:HardAnswerPhysicsBook.png]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-16T03:13:08Z

Nfortingo3: /* Examples */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:Easy Problem.png]]

[[File:Easy Answer PhysicsBook.png]]

===Difficult===
[[File:Hard Problem.png]]

[[File:Hard Answer Physics Book.png]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-16T03:12:40Z

Nfortingo3: /* Simple */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:Easy Problem.jpg]]

[[File:Easy Answer PhysicsBook.jpg]]

===Difficult===
[[File:Hard Problem.png]]

[[File:Hard Answer Physics Book.jpg]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-16T03:11:15Z

Nfortingo3: /* Difficult */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:Easy Problem.jpg]]

[[File:Easy Answer PhysicsBook.jpg]]

===Difficult===
[[File:Hard Problem.png]]

[[File:Hard Answer Physics Book.jpg]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-16T03:10:58Z

Nfortingo3: /* Middling */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:Easy Problem.jpg]]

[[File:Easy Answer PhysicsBook.jpg]]

===Difficult===
[[File:Hard Problem.png]]
[[File:Hard Answer Physics Book.jpg]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

File:PhysicsBook Probelm Picture.png

2016-04-16T03:10:13Z

Nfortingo3:

Steady State

2016-04-16T03:09:29Z

Nfortingo3: /* Examples */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File:PhysicsBook Probelm Picture.png]]

===Middling===
[[File:Easy Problem.jpg]]
[[File:Easy Answer PhysicsBook.jpg]]
Easy Answer PhysicsBook.jpg

===Difficult===
[[File:Hard Problem.png]]
[[File:Hard Answer Physics Book.jpg]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-12T02:18:07Z

Nfortingo3:

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File: SSCircuitsA.png]]

===Middling===
[[File:SSCircuitsB.png]]

===Difficult===
[[File:ExampleDifficultSteadyState.png]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

In the field of biochemistry, steady state can be related to cells. In ionic steady state, cells maintain different internal and external concentrations of various ionic species with the cell.. If the cells are not in steady state, this means there is equilibrium. With steady state, there is not an equilibrium establishes meaning both the inner and outer cell are never equal in concentration. There are continuous ions moving within and out of the cell.
== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

Steady State

2016-04-12T02:05:22Z

Nfortingo3: /* References */

'''claimed by Nyemkuna Fortingo''' ( Spring 2016)
claimed by Shirin Kale (Fall 2015)

Steady state is the term used to describe an assembled circuit in which the current and net electric field are constant and stay approximately constant for a very long time. Circuits with uniform thickness and composition can be described as steady state if charged particles move with constant current in each section of a wire in the circuit. Circuits in the steady state do not change current as a function of time.

==The Main Idea==

After a circuit has been assembled, it can be described as steady state if it meets the following requirements:
* mobile charges are moving with constant drift velocity anywhere in the circuit
* no excess charges accumulate anywhere in the circuit

Although mobile charges are moving, the drift velocities of the charges do not vary with time at any location in the circuit and thus, the current is constant throughout the circuit. However, since current is also a function of the cross-sectional area and charge density (composition) of the wire - as shown by the equation for conventional current below - a steady state circuit is more specifically described as one in which the current is constant in each section of a wire with uniform thickness and composition.

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>'''I = |q|nAv'''</big></div>

===A Mathematical Model===

i = electron current
<br>
I = conventional current
<br>
v = drift speed
<br>
q = charge of mobile particles
<br>
A = cross-sectional area of wire

In the steady state, at each section of circuit:
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>i<sub>in</sub> = i<sub>out</sub></big></div>
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big>I<sub>in</sub> = I<sub>out</sub></big></div>

===A Conceptual Understanding===

Because mobile charges are moving (with constant drift speed) in the circuit, there must be an applied electric field inside the wire that causes the mobile charges to move. Since there is no excess charge inside the wire, the electric field must be produced from surface charges. And because this electric field is responsible for moving the mobile charges inside the wire, the direction of the electric field at each location in the wire must be parallel to the wire.

Once a circuit is described as being in the steady state, there are three things we know to be true. It is true that:
<br>
:* there must be a nonzero electric field in the wire
:* the electric field has uniform magnitude throughout the wire
:* the electric field is parallel to the wire at every location along the wire

The electric field and current inside the wire remains constant because the electric force (F = qE) acting on the mobile charged particles and allowing them to move through the circuit is canceled out by the drag force produced by the moving charged particles such that the net force is zero and thus, acceleration is zero.

When you assume that a circuit is in steady state, you are basically assuming that the circuit has been assembled and connected for a long time (such that the current is constant). However, there is a process that occurs - when the circuit is first assembled - before the circuit reaches steady state. Let’s take a look at some examples to better understand steady state circuits.

[[File:Steady vs static state.png]]

==Examples==

===Simple===
[[File: SSCircuitsA.png]]

===Middling===
[[File:SSCircuitsB.png]]

===Difficult===
[[File:ExampleDifficultSteadyState.png]]

==Connectedness==
As a biomedical engineer, the idea of steady state circuits is surprisingly interesting to me because the process of reaching steady state in a circuit is much like the process of maintaining homeostasis in the human body.

== See also ==

* Circuit Components
* RC Circuits
* Thin and Thick Wires
* Node Rule
* Loop Rule
* Ohm's Law
* Series Circuits
* Parallel Circuits

==References==

Matter and Interactions Vol. II
http://people.seas.harvard.edu/~jones/es154/pages/nicetut/book2/RC.html
http://ocw.mit.edu/high-school/physics/exam-prep/electric-circuits/steady-state-direct-current-circuits-batteries-resistors/8_02_spring_2007_chap7dc_circuits.pdf

Chabay, Ruth W., and Bruce A. Sherwood. "18." Matter & Interactions. N.p.: n.p., n.d. N. pag. Print.

[[Category:Which Category did you place this in?]]

File:Steady vs static state.png

2016-04-12T01:51:21Z

Nfortingo3: Nfortingo3 uploaded a new version of "File:Steady vs static state.png"

Nfortingo3:

This topic has been claimed by nfortingo3

==The Main Idea==
The main idea of this topic is to examine the interactions on the real system and differentiate it from a point particle system.

[[File:PP vs Real.png]]
===A Mathematical Model===

The mathematical equations for these types of systems can vary, depending on what his happening within and on the system. However, typically there will always be some form of tranlational kinetic energy becasue the objects, or objects involved will move in some way displacing and conserving energy. The principle that will be used in real systems is the energy principle :

[[File:EnergyPrinEqn.png]]

where '''E''' is the total energy of the system and '''W''' is the net work done from the surroundings. The sum of all the total energies in the system is the sum of the all the external forces(F) over a certain distance(d) within the system(Work). This is know as the Work done on the system. So the energy principles demonstrates that the energy of the system is equal to the work done by the system.

==Examples==

This is an example to differentiate between solving for both the point particle and real system
===The Problem===
[[File:Simple.png]][http://www.example.com link title]

===Step 1: Solve for Point Particle System===

[[File:Middling.png]]

[[File:Simple Part Two.png]]

In this part of the problem, when it the point particle is the only thing in the system, the only thing that can be solved for is the translational kinetic energy. Since there is only one thing in the system, there is no potential energy involved and the only thing the particle can do it move or translate. The forces acting on the point particle are equal in '''magnitude''' and '''direction''' to the real system. However, their is one key difference discussed in the next section

===Step Two: Solve for Real System===
[[File:Difficult.png]]

==Connectedness==
How is this topic connected to something that you are interested in?
#This topic interest me because from one single particle you can mathematically determine the other form of energy that can occur in various physical interaction. In addition, being able to take a large complex interactions whether springs, gravitational potential or rotational energies are involved, you can solve and break down the interactions
How is it connected to your major?

#This topic is not directly connected to my major, but the underlying ideas connect very closely to my major. By first looking at a point particle we have a starting point to looking and breaking down a complex system. As a biochemist there are large complex biological systems that I will encounter in my studies.

[[File:Biochem.png]]

While I may not be able to break everything down to one single point, starting off with the simplest path way to understand and comprehend the largest and most complex systems is a similar method to my topic. Like with real and Point particle systems, you start off with a simple point so that one part of the interaction can be understood, from there the rest of the system can be dissected and other interactions can be solved for. With biochemical system, understanding one path, than moving from their to larger paths will help you understand the whole system.

Is there an interesting industrial application?

#I do not really know if their is a physical industrial application that can be seen from looking at real and Point particle systems. However, the methodology and thought process behind looking at a real system can be applied to many problem solving situations.

== See also ==

Point Particle System
===Further reading===

Books, Articles or other print media on this topic

===External links===

[[File:http://www.physicsbook.gatech.edu/Point_Particle_Systems]]
==References==

Chabay, Ruth W., and Bruce A. Sherwood. "10." <i>Matter & Interactions</i>. N.p.: n.p., n.d. N. pag. Print.

Wiki Commons Picture
--[[User:Nfortingo3|Nfortingo3]] ([[User talk:Nfortingo3|talk]]) 19:26, 28 November 2015 (EST)

[[Category:Energy]]

Real Systems

2015-11-29T00:14:22Z

Nfortingo3: /* References */

This topic has been claimed by nfortingo3

==The Main Idea==
The main idea of this topic is to examine the interactions on the real system and differentiate it from a point particle system.

[[File:PP vs Real.png]]
===A Mathematical Model===

The mathematical equations for these types of systems can vary, depending on what his happening within and on the system. However, typically there will always be some form of tranlational kinetic energy becasue the objects, or objects involved will move in some way displacing and conserving energy. The principle that will be used in real systems is the energy principle :

[[File:EnergyPrinEqn.png]]

where '''E''' is the total energy of the system and '''W''' is the net work done from the surroundings. The sum of all the total energies in the system is the sum of the all the external forces(F) over a certain distance(d) within the system(Work). This is know as the Work done on the system. So the energy principles demonstrates that the energy of the system is equal to the work done by the system.

==Examples==

This is an example to differentiate between solving for both the point particle and real system
===The Problem===
[[File:Simple.png]]

===Step 1: Solve for Point Particle System===

[[File:Middling.png]]

[[File:Simple Part Two.png]]

In this part of the problem, when it the point particle is the only thing in the system, the only thing that can be solved for is the translational kinetic energy. Since there is only one thing in the system, there is no potential energy involved and the only thing the particle can do it move or translate. The forces acting on the point particle are equal in '''magnitude''' and '''direction''' to the real system. However, their is one key difference discussed in the next section

===Step Two: Solve for Real System===
[[File:Difficult.png]]

==Connectedness==
How is this topic connected to something that you are interested in?
#This topic interest me because from one single particle you can mathematically determine the other form of energy that can occur in various physical interaction. In addition, being able to take a large complex interactions whether springs, gravitational potential or rotational energies are involved, you can solve and break down the interactions
How is it connected to your major?

#This topic is not directly connected to my major, but the underlying ideas connect very closely to my major. By first looking at a point particle we have a starting point to looking and breaking down a complex system. As a biochemist there are large complex biological systems that I will encounter in my studies.

[[File:Biochem.png]]

While I may not be able to break everything down to one single point, starting off with the simplest path way to understand and comprehend the largest and most complex systems is a similar method to my topic. Like with real and Point particle systems, you start off with a simple point so that one part of the interaction can be understood, from there the rest of the system can be dissected and other interactions can be solved for. With biochemical system, understanding one path, than moving from their to larger paths will help you understand the whole system.

Is there an interesting industrial application?

#I do not really know if their is a physical industrial application that can be seen from looking at real and Point particle systems. However, the methodology and thought process behind looking at a real system can be applied to many problem solving situations.

== See also ==

Point Particle System
===Further reading===

Books, Articles or other print media on this topic

===External links===

Internet resources on this topic

==References==

Matter and Interactions By Ruth W. Chabay, Bruce A. Sherwood - Chapter 10

Wiki Commons Picture

[[Category:Energy]]