Magnetic Torque: Difference between revisions
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==The Main Idea== | ==The Main Idea== | ||
The idea behind this concept is that as the current flows through the wire | The idea behind this concept is that as the current flows through the wire and a magnetic field is produced. While this magnetic field is being produced, there is a force acting upon the wire causing it to twist. An example of this phenomenon is the movement of a compass needle by the Earth's magnetic field or hanging a coil near a bar magnet will cause it to twist in the direction of the magnetic field. | ||
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[[File:torqueexample.png]] | [[File:torqueexample.png]] | ||
Torque is created from the magnetic forces acting upon a coil. | Torque is created from the magnetic forces acting upon a coil. | ||
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[[File:torque.jpg]] This is the overall equation for determining magnetic torque. | [[File:torque.jpg]] This is the overall equation for determining magnetic torque. | ||
[[File:theT.jpg]] Represents torque | [[File:theT.jpg]] Represents torque | ||
[[File:mu.jpg]] is the dipole moment of the magnet | |||
[[File: | [[File:theB.jpg]] is the magnetic field created by the magnet (in units of Tesla) | ||
===A Computational Model=== | ===A Computational Model=== | ||
Revision as of 22:04, 4 December 2015
Claimed by Demetria Hubbard--Dhubbard8 (talk) 15:02, 2 December 2015 (EST)
Summary
Magnetic torque is a phenomenon that occurs when the magnetic field produced causes a current-carrying wire to twist out of proportion.
The Main Idea
The idea behind this concept is that as the current flows through the wire and a magnetic field is produced. While this magnetic field is being produced, there is a force acting upon the wire causing it to twist. An example of this phenomenon is the movement of a compass needle by the Earth's magnetic field or hanging a coil near a bar magnet will cause it to twist in the direction of the magnetic field.
A Mathematical Model
Torque is created from the magnetic forces acting upon a coil.
This is the overall equation for determining magnetic torque.
Represents torque
is the dipole moment of the magnet
is the magnetic field created by the magnet (in units of Tesla)
A Computational Model
How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript
Examples
Torque on Current Carrying Loop
Simple
If there is a current-carrying wire with a magnetic field of 0.5 T and a dipole moment of 0.23, what is the torque produced on the wire?
Middling
Difficult
Connectedness
Utilizing a compass is a basic survival need and it just so happens to depend on the torque produced by the Earth's magnetic field.
See also
Further reading
- Chabay, Ruth W., and Bruce A. Sherwood. Matter & Interactions. 3rd ed. Hoboken, NJ: Wiley, 2011. Print.
External links
References
- Torque Example
- Chabay, Ruth W., and Bruce A. Sherwood. Matter & Interactions. 3rd ed. Hoboken, NJ: Wiley, 2011. Print.
