alleryA steel needle is stroked many times in one direction with a magnet. What results?
AIt becomes a magnet
BIt melts away
CIt becomes lighter
DIt turns to copper
Answer & Solution
Correct answer: A. It becomes a magnet
1. Stroking is one way to magnetize a ferromagnet.
2. The magnet is moved from one end to the other, always in the same direction.
3. This aligns the needle's domains so it becomes a magnet.
_Source: Wikipedia, Magnet, Magnetizing ferromagnets_
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