4. The following is a magnetic material.
a) copper
b) nickel
c) aluminium
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1
Answer:
nickel is the correct answer
Answered by
1
Answer:
The copper itself is not magnetic, but when its approached by magnets, the electrons on the surface of the copper being rotating. ... In an effort to resist the magnet's pull, the electrons briefly create their own magnetic field, which slows down the magnet's descent .
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