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Lenz’s Law demonstration with powerful rare earth magnet and thick walled copper tube.
In this experiment we look at the effect of moving a magnetic field through a conductor.
The copper tube is an excellent conductor of electricity, and easily translates the movement of the magnetic flux within the copper material in to eddy currents. These currents then produce their own magnetic fields that oppose the movement of the rare earth magnet field, and produce some very interesting effects such as apparent reduced gravity, and damping.
It is this effect that is often used in roller coasters to slow the cart down at the end of the ride!!!
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