What is the ferromagnetic substance?

What is a ferromagnetic substance? Give an example.

What is a ferrimagnetic substance? Give an example.

(i) What is ferromagnetic substance? (ii) KBr crystallises in face-centred cubic (fcc) crystals. The density and formula mass of KBr crystal are 2.65g*cm^(-3) and 119g*mol^(-1) respectively. Find the distance between K^(+)andBr^(-) ions in KBr crystal. or, (i) Which kind of defect in ionic crystal does not alter the density? (ii) An element X has atomic mass 60g*mol^(-1) and density 6.23g*cm^(-3) . The edge length of its unit cell is 400 pm. Identify the type of the unit cubic cell. Calculate the radius of X atom.

What are ferromagnetic substance?

Which one is not a ferromagnetic substance.

What happens when a ferromagnetic substance is heated at very high temperature?

What happens when a ferromagnetic substance is heated to high temperatures?

The magnetic moments of the domains in a ferromagnetic substance-

Assertion : On heating ferromagnetic 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 .