Fill ups
At ……………………..temperature a ferromagnetic material passes over to paramagnetics.

Answer the following questions: Is the permeability of a ferromagnetic material independent of the magnetic field? If not, is it more for lower or higher fields?

Answer the following questions: What kind of ferromagnetic material is used for coating magnetic tapes in a cassette player, or for building ‘memory stores’ in a modern computer?

Name the three commonly known ferromagnetic materials?

Distinguish between diamgnetic and ferromagnetic materials in respect of intensity of magnetisation.

If the permeability of a ferromagnetic material independent of the magnetic field? If not is it more for lower or higher fields?

Fill ups ………………are materials used to polarise light.

Is the permeability of ferromagnetic material independent of the magnetic field? If not, is it more for lower or highest fields?

Distinguish between diamgnetic and ferromagnetic materials in respect of behaviour of non-uniform magnetic field