Lenz's Law

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A practical demonstration of Lenz's Law. Heinrich Emil Lenz (1804-1865) further explained Faraday's Law when he formulated Lenz's law in 1834 which states that "the emf induced in an electric circuit always acts in such a direction that the current it drives around a closed circuit produces a magnetic field which opposes the change in magnetic flux." This video was directed and narrated by Mustafa Daif with the help of Younis Ali and Ebtisam Anzoor. This video was produced for EduMation, an educational and training website. The video was shot at Bahrain Training Institute on 7th March 2007.For more educational videos and animations, visit EduMation at: http://msdaif.googlepages.com
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Lenz's Law translations:
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(قانون لنز)(特伦兹法)(Lenz wet)
(La loi de Lenz) (Lenz'sche Regel)
(Νόμος του Λέντζ)(Legge di Lenz)
(レンツの法則) (렌즈 법칙)
(Faraday lei) (Закон Ленца)
(Ley de Lenz)

Category:

Howto & Style

Tags:

• Lenz's
• Lenz
• Law
• induced
• current
• voltage
• electromagnetic
• induction
• coil
• manyetik
• indüksiyon
• basic
• generator
• EduMation

[bjtaudio]

You can do this same type of experiment using a loudspeaker too, with the speaker wires open (speaker not connected to anything) if you physically move the cone of the driver rather easily in and out, short circuit the speaker leads of the speaker, then the cone is very stiff and hard to move. If you connect a small torch bulb, you will see it momently light when the cone is moved. If you connect the drive to another driver you will see the other drivers cone move in and out too...

[msdaif]

@bjtaudio

Thank you. Good idea

[bigvic22sti]

hey so if you have constant power to the coils will the coils hover in between the magnets?

[msdaif]

In this set-up, we could not control the power. Moreover, the coil will eventually fall due to gravity.

[yo6ial]

@masterwolf1212 heat and electricity generated by the coil can be dissipated or recycled.

[masterwolf1212]

@yo6ial Yes, that could work. But then nomatter what way of doing things, wouldn't we have to worry about the coil overheating?

[yo6ial]

@masterwolf1212 the effect would be usable in the dampening part of the suspension (absorption of energy)

For suspending and dampening a combination between magneto-static and electromagnetic forces might do the trick as energy production and conversion becomes more and more efficient.

The coil could just be suspended by a spring for the moment.

[masterwolf1212]

@yo6ial Yeah, but then poses the question- would the magnetic field be strong enough to be 'stiff' enough to be a suspension? You could use neodymium magnets. But even still, if its not strong enough, would it require mass amounts of electricity to create a strong enough magnetic field to keep the coil centered?

[Daveybhoy111]

Mario's good at physics! who knew?

[lenzslaw12]

@MrEnceladus18 Yea definatley, use flemmings left hand rule

[yo6ial]

This might be a really nice shock absorber solution...

[ibanezicemaniac]

verrrrnice!!!!!

[MrEnceladus18]

@edumation ok thx ;)

[edumation]

@MrEnceladus18 Yes