Lenz's law - Revision history

Jmdonev: 1 revision imported

2020-04-28T15:32:40Z

1 revision imported

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energy>Jmdonev at 22:21, 10 April 2020

2020-04-10T22:21:28Z

← Older revision		Revision as of 22:21, 10 April 2020
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	[[Category:Done ~~2018~~-05-18]]		[[Category:Done 2020-02-29]]
	<onlyinclude>'''Lenz's law''' is an important concept in [[electromagnetic force\|electromagnetism]]. It states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a [[current]] whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>		<onlyinclude>'''Lenz's law''' is an important concept in [[electromagnetic force\|electromagnetism]]. It states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a [[current]] whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>

	The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made [[power]] source such as [[hydroelectric facilities]], [[nuclear power plant]]s, and [[natural gas power plant]]s transfer the [[energy]] from their [[fuel]] or [[flow]] into useful [[electricity]] by these generators. A generator produces an alternating current, which is what 99% of the world's electricity [[grid]] uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>		The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made [[power]] source such as [[hydroelectric facilities]], [[nuclear power plant]]s, and [[natural gas power plant]]s transfer the [[energy]] from their [[fuel]] or [[primary energy flow]] into useful [[electricity]] by these generators. A generator produces an alternating current, which is what 99% of the world's electricity [[grid]] uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>

	==PhET Simulation==		==PhET Simulation==
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	Generators spin which changes the orientation of the magnet's poles, in order to produce alternating current. This is analogous to placing the magnet inside the loop and repeatedly pressing the pole-reversing button, near the bottom right of the simulation.		Generators spin which changes the orientation of the magnet's poles, in order to produce alternating current. This is analogous to placing the magnet inside the loop and repeatedly pressing the pole-reversing button, near the bottom right of the simulation.

	<html><iframe src="~~http~~://phet.colorado.edu/sims/html/faradays-law/latest/faradays-law_en.html" width="800" height="600"></iframe></html>		<html><iframe src="https://phet.colorado.edu/sims/html/faradays-law/latest/faradays-law_en.html" width="800" height="600"></iframe></html>

	To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]		To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]

Jmdonev: 1 revision imported

2018-05-18T22:53:13Z

1 revision imported

← Older revision	Revision as of 22:53, 18 May 2018
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Jmdonev at 19:32, 17 May 2018

2018-05-17T19:32:26Z

← Older revision		Revision as of 19:32, 17 May 2018
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	[[Category:Done ~~2015~~-09-06]]		[[Category:Done 2018-05-18]]
	<onlyinclude>'''Lenz's law''' is an important concept in [[electromagnetic force\|electromagnetism]]~~, which~~ states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a [[current]] whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>		<onlyinclude>'''Lenz's law''' is an important concept in [[electromagnetic force\|electromagnetism]]. It states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a [[current]] whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>

	The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made [[power]] source such as [[hydroelectric facilities]], [[nuclear power plant]]s, and [[natural gas power plant]]s transfer the [[energy]] from their [[fuel]] or [[flow]] into useful [[electricity]] by these generators. A generator produces an alternating current, which is what 99% of the world's electricity [[grid]] uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>		The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made [[power]] source such as [[hydroelectric facilities]], [[nuclear power plant]]s, and [[natural gas power plant]]s transfer the [[energy]] from their [[fuel]] or [[flow]] into useful [[electricity]] by these generators. A generator produces an alternating current, which is what 99% of the world's electricity [[grid]] uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>
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	To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]		To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]

			== For Further Reading ==
			For further information please see the related pages below:
			*[[Magnetic field]]
			*[[Magnetic flux]]
			*[[Electric generator]]
			*[[Electric current]]
			* Or explore a [[Special:Random\| random page!]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]
	~~[[category: Mark edit]]~~

J.williams: 1 revision imported

2015-09-18T16:52:13Z

1 revision imported

← Older revision	Revision as of 16:52, 18 September 2015
(No difference)

Jmdonev at 20:08, 17 September 2015

2015-09-17T20:08:27Z

← Older revision		Revision as of 20:08, 17 September 2015
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	[[Category:Done 2015-04-01]]		[[Category:Done 2015-09-06]]
	<onlyinclude>'''Lenz's law''' is an important concept in electromagnetism, which states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a current whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>		<onlyinclude>'''Lenz's law''' is an important concept in [[electromagnetic force\|electromagnetism]], which states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a [[current]] whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>

	The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made power source such as ~~dams~~, nuclear power ~~plants~~, and natural gas ~~plants~~ transfer the energy from their [[fuel]] or [[flow]] into useful [[electricity]] by these generators~~, which can be understood by the PhET simulation below~~. ~~The~~ generator produces an alternating current, which is what 99% of the world's electricity grid uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>		The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made [[power]] source such as [[hydroelectric facilities]], [[nuclear power plant]]s, and [[natural gas power plant]]s transfer the [[energy]] from their [[fuel]] or [[flow]] into useful [[electricity]] by these generators. A generator produces an alternating current, which is what 99% of the world's electricity [[grid]] uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>

	~~<html><div style~~=~~"position: relative; width: 300px; height: 225px;"><a href~~=~~"http://phet~~.~~colorado~~.~~edu/sims/faraday/generator_en~~.~~jnlp" style="text~~-~~decoration: none;"~~><~~img~~ src="http://phet.colorado.edu/sims/~~faraday~~/~~generator~~-~~screenshot~~.~~png" alt="Generator" style="border: none;" width="300" height="225"/><div style=~~"~~position: absolute;~~ width~~: 200px; height: 80px; left: 50px; top: 72px; background-color: #FFF; opacity: 0.6; filter: alpha(opacity~~ = ~~60);~~"~~></div><table style=~~"~~position: absolute; width: 200px;~~ height~~: 80px; left: 50px; top: 72px;"><tr><td style~~="~~text-align: center; color: #000; font-size: 24px; font-family: Arial,sans-serif;~~"~~>Click to Run</td></tr></table></a~~></~~div~~></html>		==PhET Simulation==
			Lenz's law can be explored using the PhET simulation below that was graciously provided to us by the University of Colorado. As the [[magnet]]'s [[velocity]] varies near the inductor (the loop of [[wire]]), a voltage is induced across it which drives the current, and lights up the [[light bulb]].

			Generators spin which changes the orientation of the magnet's poles, in order to produce alternating current. This is analogous to placing the magnet inside the loop and repeatedly pressing the pole-reversing button, near the bottom right of the simulation.

			<html><iframe src="http://phet.colorado.edu/sims/html/faradays-law/latest/faradays-law_en.html" width="800" height="600"></iframe></html>

	To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]		To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]
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	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]
			[[category: Mark edit]]

J.williams: 1 revision imported

2015-08-26T21:31:16Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
(No difference)

J.williams at 16:54, 12 August 2015

2015-08-12T16:54:56Z

New page

[[Category:Done 2015-04-01]]
<onlyinclude>'''Lenz's law''' is an important concept in electromagnetism, which states that when a [[voltage]] is created by a change in [[magnetic flux]], the induced voltage must create a current whose magnetic field is in opposition to the change which produces it.<ref>Hyperphysics, ''Faraday's Law'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html</ref></onlyinclude>

The induced [[magnetic field]] is always arranged so that a loop of wire with the induced current has ''constant'' magnetic flux. The practical use of this law is almost endless, and is how electrical [[generator]]s work. With the sole exception of [[photovoltaic cell]]s, every man-made power source such as dams, nuclear power plants, and natural gas plants transfer the energy from their [[fuel]] or [[flow]] into useful [[electricity]] by these generators, which can be understood by the PhET simulation below. The generator produces an alternating current, which is what 99% of the world's electricity grid uses.<ref>Hydro Quebec, ''Direct Current and Alternating Current'' [Online], Available: http://www.hydroquebec.com/learning/notions-de-base/continu-alternatif.html</ref>

<html><div style="position: relative; width: 300px; height: 225px;"><a href="http://phet.colorado.edu/sims/faraday/generator_en.jnlp" style="text-decoration: none;"><img src="http://phet.colorado.edu/sims/faraday/generator-screenshot.png" alt="Generator" style="border: none;" width="300" height="225"/><div style="position: absolute; width: 200px; height: 80px; left: 50px; top: 72px; background-color: #FFF; opacity: 0.6; filter: alpha(opacity = 60);"></div><table style="position: absolute; width: 200px; height: 80px; left: 50px; top: 72px;"><tr><td style="text-align: center; color: #000; font-size: 24px; font-family: Arial,sans-serif;">Click to Run</td></tr></table></a></div></html>

To learn more about Lenz's law, visit [http://hyperphysics.phy-astr.gsu.edu/hbase/electric/farlaw.html#c2 hyperphysics.]

==References==
{{reflist}}
[[Category:Uploaded]]