Magnetism and M...

A magnetic substance is kept in a magnetic field, it will be thrown out of the field if it is a __________ substance.

Inside the magnet, the direction of field lines is from

The strength of the magnetic field of an electromagnet :

A magnet of magnetic moment 20 CGS units is freely suspended in a uniform magnetic field of intensity 0.3 CGS units. The amount of work done in deflecting it by an angle of $$30^o$$ in CGS units is

All of the following magnets pictured have magnetic field lines like the ones pictured in the diagram above. For which one are the poles correctly labeled?

A magnetic moment of an electron orbiting in a circular orbit of radius $$r$$ with a speed $$v$$ is equal to:

A bar magnet has a coercivity of $$\displaystyle 4\times { 10 }^{ 3 }{ Am }^{ -1 }$$. It is placed inside a solenoid of length $$12\ cm$$ having 60 turns in order to demagnetize it, the amount of current that should be passed through the solenoid is:

Identify which is not a property of a ferromagnetic material.

The material used for permanent magnet has:

The magnet is strongest near the