Question

Three identical iron bars are kept on a table two out of three bars are magnet in one of the magnets the north south poles are marked how will you find out which of the other two bars is a magnet identify the poles of this magnet

Answer 1

Answer:

Finding directions using Magnet

A freely suspended magnet always comes to rest in North-South direction. This property has been used from olden days to find directions.

Compass is a device used to find directions.

Compass consists of a magnetized needle and a dial, marked with directions, inside a box with glass cover. The freely rotating needle comes to rest in north-south direction as depicted on the dial. The north pole of the needle is marked red for distinguishing it from south pole.