Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 33 - Electromagnetic Induction - Conceptual Questions - Page 995: 2

Answer

There will be a repulsive force between the magnets and the loop of copper wire.

Work Step by Step

Copper is not a magnetic material, so it is not attracted to magnets in the same way that a paper clip, which is made of a ferromagnetic material, would be. Instead, the loop of copper wire will be repelled by the magnets because the magnets create a magnetic field that affects the electrons in the copper wire. When the electrons in the copper wire are affected by the magnetic field, they produce a current that creates its own magnetic field that opposes the field of the magnets. This creates a repulsive force between the magnets and the copper wire loop. To insert the loop of copper wire between the magnets, you will need to push it in against this repulsive force.
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