Explain ferromagnetic solid materials ?

What king of ferromagnetic material is used for coating magnetic tapes in a cassette player, or for building 'memory stores' in a modern computer ?

What are ferromagnetic materials ? Give examples. What happens to a ferromagnetic material at curie temperature ?

Explain Ferromagnetism with suitable example .

The temperature at which a ferromagnetic material becomes paramagnetic is called

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

Explain different magnetic properties of solids. What happens when these substances are heated ?

Explain different magnetic properties of solids. What happens when these substances are heated?

What is solid waste? Explain best practices for solid waste management.

Explain best practices for solid waste management.

(A) On heating ferromagnetic or ferrimagnetic substances, they become paramagnetic (R) On heating randomsiation of magnetic domains occurs