Question

what happens when a bar magnet suspended freely

Answer 1

In the case of magnets unlike poles attract and unlike poles repel. There is a large Southmagnetic polarity in the so called North of the Earth. So when amagnet is freely suspended it's north pole gets attracted by themagnetic south polarity of the Earth (in the north direction) and it points to the North directon.

hope it helps you ^-^

Answer 2

When a bar magnet is suspended freely it comes to rest in north and south pole of the earth