Experiment Ek-01
Forces Due to Induced Currents
Description: A
light aluminum ring is suspended so that it can only move in one direction. As
a magnet is moved toward the ring, the magnetic field induces a current in the
ring which repels it from the magnet. When the magnet is moved away, the ring
is attracted to the magnet.
Setup.
Because the magnet is not moving, there is no deflection observed from the rest
position of the ring.
When the polarity of the magnet is switched, the observations are the same.
The ring is repelled from the magnet when the magnet moves toward the ring and
is attracted to the magnet when it is moved away. The forces are only present
when motion is taking place.
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Friday August 15, 2008 8:37 PM
