Explain ferromagnetic and diamagnetic substances.

With the help of electron spins, clearly distinguish between Ferromagnetic, Antiferromagnetic and Ferrimagnetic substances.

Assertion : On heating ferromagnetic or ferromagnetic substance , they become paramagnetic Reason :The electrons change their spin on heating

Mention how the relative magnetic permeability differs for diamagramatic, paramagnetic an ferromagnetic substances.

Assertion : On heating ferrimagnetic or ferromagnetic substance , they become paramagnetic Reason :The electrons change their spin on heating

Compare paramagnetic , diamagnetic and ferromagnetic substances on the basis of magnetic permeability and magnetic susceptibility .

Define: (i) ferromagnetic (ii) ferrimagnetic and (iii) anti-ferromagnetic substance. Give one example of each substance.

What are ferromagnetic substance?

Which term is related to the fact that all the domains are aligned to the direction of applied magnetic field for ferromagnetic substance-

What type of substances would make better permanent magnets, ferromagnetic or ferrimagnetic? Justify.

Which one is not a ferromagnetic substance.