Question

You are given a magnet with no markings, indicating its poles. How can you identify its poles by a) using another bar magnet? b) using a thread?

Answer 1

Explanation:

Take a bar magnet with known/marked poles on it. Let the north pole of the magnet be brought closer to the suspended magnet at the end that is pointing towards north, if it shows repulsion than it is confirmed.

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Answer 2

Answer:

a) using another bar magnet

Explanation:

by using another bar magnet with known poles we can identify the poles of magnet with no marking. since, we know that similar poles will repel and opposite poles will attract each other.