Suppose you have two bar magnets. magnet A has its north and south poles marked. MAGNET B does not have its poles marked. how can you identify the poles on magnet b?

Explanation:

Opposite magnetic poles tend to get closer. Hence, you may know how are the magnetic poles of the magnet B if you observe which poles try to get closer to the magnetic poles of the magnet A.

For example, if a pole of the magnet B is attracted by the south magnetic pole of the magnet A, that pole of the magnet B is a positive magnetic pole.

I hope this is useful for you

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