Question

Which property of a magnet is used to determine the polarity of the magnet?

Answer 1

1. A magnet has two poles namely the North pole and the South pole.
2. The Law of magnetic poles is: like poles like North-North or South-South repel each other whereas unlike poles like North-South or South-North attract each other.

Hence, The Law of magnetic poles is used to determine the polarity of the magnet.