Question

How can we find our poles of bar magnets which have no marking on it

Answer 1

by keeping a compass in front of magnet

Answer 2

just try to keep the ends of the magnet together if it attracts it means they are of north & south then attract one of them to another end of other magnet if it repeal it means it is of same side may be north north or south south.

I think it's help
thanks!!