Question

a bar manget has no markings to indicate it's poles.how would you find out at which end is its north poles located​

Answer 1

Answer:

take a magnet tie it and freely suspend it, the pole of magnet which face towards the south pole of the earth is North pole of magnet and other side is South pole of magnet

Answer 2

We can find the poles of a bar magnet by suspending it freely by a string. A freely suspended bar magnet always comes to rest in the North−South direction. The north facing end of the magnet is its north pole, and the south facing end is its south pole.

Hope this help you