Magnetic Fields - Revision history

Mkelly74 at 06:21, 25 March 2021

2021-03-25T06:21:53Z

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	~~This page has been claimed by Tyrone (Luke) Qin.~~

	For the practice problems below, consult your professor for the solution.		For the practice problems below, consult your professor for the solution.

Lukeqin90: /* Connectedness */

2015-11-30T14:17:55Z

Connectedness

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	[[File:MagFlux.gif]]		[[File:MagFlux.gif]]

	==~~Connectedness~~==		==Why It Matters==
	Magnetic flux is interesting because it's always zero through a closed surface because magnetic fields come from dipoles not monopoles where a particle just produces a one-sided magnetic field going in one direction, unlike point charges that generate an electric field going in one direction from every side of the particle. As you read further into this wiki book, you'll find out that the most important factor concerning the production of electricity is magnetic flux. The change of magnetic flux is what creates an electric motor force (voltage) and causes current to flow. The greater the magnetic flux and the faster it changes across a wire or a coil, the more influential it will be in determining the output.		Magnetic flux is interesting because it's always zero through a closed surface because magnetic fields come from dipoles not monopoles where a particle just produces a one-sided magnetic field going in one direction, unlike point charges that generate an electric field going in one direction from every side of the particle. As you read further into this wiki book, you'll find out that the most important factor concerning the production of electricity is magnetic flux. The change of magnetic flux is what creates an electric motor force (voltage) and causes current to flow. The greater the magnetic flux and the faster it changes across a wire or a coil, the more influential it will be in determining the output.

Lukeqin90: /* Practice Problems */

2015-11-30T14:16:22Z

Practice Problems

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	2) Referring back to the previous problem, the disk is now tilted so that the angle between the yz plane and the surface is 30 degrees. Find the new magnetic flux in terms of the given variables.		2) Referring back to the previous problem, the disk is now tilted so that the angle between the yz plane and the surface is 30 degrees. Find the new magnetic flux in terms of the given variables.

	3) A square with side length T is directly facing the xy plane 3 meters away from a current carrying 1 meter wire (from a portion of a nearby circuit powered by a battery with an emf of U). The wire is aligned with the y axis. The magnetic flux going through the square is G. Find the resistance of the wire.		3) A square with side length T is directly facing the xy plane 3 meters away from a current carrying 1 meter wire (from a portion of a nearby circuit powered by a battery with an emf of U. The wire is aligned with the y axis. The magnetic flux going through the square is G. Find the resistance of the wire.

	== See also ==		== See also ==

Lukeqin90: /* History */

2015-11-30T14:14:58Z

History

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	Near the end of his career, Michael Faraday proposed that electromagnetic forces can be applied to the empty space around a conductor. This idea was rejected by his fellow scientists, and Faraday did not live to see the day when is proposition was eventually accepted by the scientific community. Faraday's concept of lines of flux generated from charged bodies and magnets provided a way to display electric and magnetic fields in a new way; that conceptual model was crucial for the successful development of 19th century technology.		Near the end of his career, Michael Faraday proposed that electromagnetic forces can be applied to the empty space around a conductor. This idea was rejected by his fellow scientists, and Faraday did not live to see the day when is proposition was eventually accepted by the scientific community. Faraday's concept of lines of flux generated from charged bodies and magnets provided a way to display electric and magnetic fields in a new way; that conceptual model was crucial for the successful development of 19th century technology.

	Mathematician, James Maxwell had ~~been a fan of~~ electricity and magnetism since Faraday's lines of force was read to the Cambridge Philosophical Society in 1855. The paper presented a simplified model of Faraday's ideas and how electricity and magnetism were related. Maxwell took all of that along with what he already knew and developed a linked set of differential equations with 20 equations in 20 variables which will eventually be concatenated into the four equations known as Maxwell's Equations one of which describes magnetic flux as written in the equation displayed above.		Mathematician, James Maxwell had an obsession for electricity and magnetism since Faraday's lines of force was read to the Cambridge Philosophical Society in 1855. The paper presented a simplified model of Faraday's ideas and how electricity and magnetism were related. Maxwell took all of that along with what he already knew and developed a linked set of differential equations with 20 equations in 20 variables which will eventually be concatenated into the four equations known as Maxwell's Equations one of which describes magnetic flux as written in the equation displayed above.

	==Practice Problems==		==Practice Problems==

Lukeqin90: /* See also */

2015-11-25T19:44:22Z

Lukeqin90: /* External links */

2015-11-25T19:44:09Z

External links

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	===External links===		===External links===

	[http://hsfs2.ortn.edu/myschool/mperkins/09_magnetism/notes/09%20-%20magnetism%20-%20magnetic%20flux.pdf Intro to Magnetic Flux]		*[http://hsfs2.ortn.edu/myschool/mperkins/09_magnetism/notes/09%20-%20magnetism%20-%20magnetic%20flux.pdf Intro to Magnetic Flux]
			*[http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/fluxmg.html Basics of Magnetic Flux]
	[http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/fluxmg.html Basics of Magnetic Flux]

	==References==		==References==

Lukeqin90: /* External links */

2015-11-25T19:43:53Z

External links

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	[http://hsfs2.ortn.edu/myschool/mperkins/09_magnetism/notes/09%20-%20magnetism%20-%20magnetic%20flux.pdf Intro to Magnetic Flux]		[http://hsfs2.ortn.edu/myschool/mperkins/09_magnetism/notes/09%20-%20magnetism%20-%20magnetic%20flux.pdf Intro to Magnetic Flux]

	[http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/fluxmg.html Basics of Magnetic Flux]		[http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/fluxmg.html Basics of Magnetic Flux]

Lukeqin90: /* References */

2015-11-25T19:43:09Z

References

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	==References==		==References==

	* {{springer\|title=Maxwell equations\|id=p/m063140}}
	* [http://www.maxwells-equations.com maxwells-equations.com] — An intuitive tutorial of Maxwell's equations.		* [http://www.maxwells-equations.com maxwells-equations.com] — An intuitive tutorial of Maxwell's equations.
	* Mathematical aspects of Maxwell's equation are discussed on the [http://tosio.math.toronto.edu/wiki/index.php/Main_Page Dispersive PDE Wiki].		* Mathematical aspects of Maxwell's equation are discussed on the [http://tosio.math.toronto.edu/wiki/index.php/Main_Page Dispersive PDE Wiki].

	[[Category:Maxwell's Equations]]		[[Category:Maxwell's Equations]]

Lukeqin90 at 19:42, 25 November 2015

2015-11-25T19:42:58Z

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	===External links===		===External links===

	~~Internet resources on this topic~~		[http://hsfs2.ortn.edu/myschool/mperkins/09_magnetism/notes/09%20-%20magnetism%20-%20magnetic%20flux.pdf Intro to Magnetic Flux]
			[http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/fluxmg.html Basics of Magnetic Flux]

	==References==		==References==

	~~This section contains~~ the ~~the references you used while writing this page~~		* {{springer\|title=Maxwell equations\|id=p/m063140}}
			* [http://www.maxwells-equations.com maxwells-equations.com] — An intuitive tutorial of Maxwell's equations.
			* Mathematical aspects of Maxwell's equation are discussed on the [http://tosio.math.toronto.edu/wiki/index.php/Main_Page Dispersive PDE Wiki].

	[[Category:~~Which Category did you place this in?~~]]		[[Category:Maxwell's Equations]]

Lukeqin90 at 19:30, 25 November 2015

2015-11-25T19:30:56Z

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 [[File:MagFlux.gif]]
 ==Practice Problems==
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 ) A square with side length T is directly facing the xy plane 3 meters away from a current carrying 1 meter wire (from a portion of a nearby circuit powered by a battery with an emf of U). The wire is aligned with the y axis. The magnetic flux going through the square is G. Find the resistance of the wire.

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	== See also ==		== See also ==

	[[Magnetic Field]]		*[[Magnetic Field]]
	[[Ampere-Maxwell Law]]		*[[Ampere-Maxwell Law]]

	===Further reading===		===Further reading===

	[http://www.nature.com/nnano/journal/v9/n5/pdf/nnano.2014.52.pdf Observation of the magnetic ﬂux and threedimensional structure of skyrmion lattices by electron holography]		*[http://www.nature.com/nnano/journal/v9/n5/pdf/nnano.2014.52.pdf Observation of the magnetic ﬂux and threedimensional structure of skyrmion lattices by electron holography]

	===External links===		===External links===