You are provided with two similar bars - one is magnet and the other is just a bar of iron. How will you distinguish between them without the use of any other magnet or bar?

You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.

How will you distinguish between a compound microscope and a telescope just by looking at them ?

Two lines of force due to a bar magnet

Three identical iron bars are kept on a table. Two out of three bars are magnets. In one of the magnet 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.

To measure the magnetic moment of a bar magnet, one may use

What are the two ways in which you can trace the magnetic field pattern of a bar magnet ?

Does the length of an iron bar change when it is magnetized?

You have a magnet with you and north pole and south pole are marked on it. There is a bar on a table. To find out whether it is a magnet or a magnetic substance, which one is the sure test?