[Lenz's Law] : [Eddy Current] Demonstration & Explanation

[Lenz's Law] : [Eddy Current] Demonstration & Explanation
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Lenz's Law & Eddy Current Demonstration & Explanation Using Copper, Aluminum & Magnets

Simple yet amazing Lenz's Law & Eddy Current Demonstration & Explanation using copper, aluminum & different magnets.

See Video for explanation & see pics at end on how to get hard drive magnets broke free.

Check out our other videos on magnets, science & all things cool.

Science

Physics

RC

Rubiks Cube

MMA

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Lenz's law is named after Heinrich Lenz
Francois Arago was the first to observe Eddie Currents

Look up the following names to learn more:
James Clerk Maxwell
Richard P. Feynman
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The large magnets are from server drives while the smaller ones were purchased.

The copper pipe with the slit was purchased over a decade ago from an online science store.

Probably from Arbor Scientific:

Lenzs Law Apparatus
Product # P8-8400
Experience the fundamental principle behind electric motors with this demonstration. Drop the strongly magnetized plug through the copper pipe, and induced currents cause it to fall very slowly. The unmagnetized plug falls without resistance. Viewing window lets you see the action, and yellow plug ends make them easier to see. Experiments and information included. Lenz's Law Apparatus allows you to demonstrate electric and magnetic forces. Electric current generated by a moving magnet will always oppose the original motion of the magnet that created the current. Amusement Park thrill rides use this same principle for braking.

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Never Purchased from them but Grand Illusions seems to have a lot of cool stuff.

If you drop the little metal slug down the copper tube, it falls under the pull of gravity, and drops out at the bottom, just as you would expect.But take the second, apparently identical, slug; drop it down the tube, and hey presto! the slug travels down the tube extremely slowly. You can even see it's slow passage via the window in the side of the tube.It is a great magic trick, but the truth is just as amazing. The second slug is highly magnetic. Now Michael Faraday, the British physicist, discovered as long ago as 1831 that when you pushed a bar magnet into the opening within a copper coil, an electric current was produced within the coil. This is known as electromagnetic induction.The Russian physicist Heinrich Lenz observed that the direction of the induced current in a conductor is always such as to oppose the motion which produced it.So as the magnetic slug moves down the copper tube, a series of transient "eddy currents" are induced in the copper tube, and these currents will create a magnetic field that opposes the downward motion of the slug.1

[pakistanmurdabaad]

good brother.... or but good. teaching lill boy

[cachi-]

What's the name of the phone App?