Question

A student has a bar magnet where the poles are not labelled. He/She wants to determine the poles of the magnet. Which option would help in identifying the poles of the magnet?

Heating the piece of magnet
Taking it close to a magnetic compass
Keeping it horizontally on a piece of paper
Rubbing it against a piece of iron​

Answer 1

Answer:

2nd one

Explanation:

Answer 2

Answer:

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Explanation:

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