Question

(b)
is the sure test of magnetism.​

Answer 1

Answer:

Repulsion is the surest test of magnetism

Answer 2

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Repulsion is the sure test for magnetism because it occurs only when two like poles of a magnet exist while the attraction phenomenon can occur between two unlike poles of a magnet and also between a magnet and a magnetic material means if there are two magnets they will attract each other and suppose if one material.

Attraction can be caused either by opposite poles of magnets or between one pole of the magnet and an unmagnetized bar of iron whereas repulsion is possible between the two similar poles of magnets. Hence, repulsion is the surest test of magnetism.

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