(a) Define the term magnetic susceptibility and write its relation in terms of relative magnetic permeability .
(b) Two magnetic materials A and B have relative magnetic permeabilities of 0.96 and 500 . Identify the magnetic materials A and B .

Explanation

(a) Magnetic Susceptibility : It is defined as the ratio of the magnetisation M to the magnetising field intensity H. It is denoted by `X_(m)`.
`X_(m)=(M)/(H)`
Magnitic susceptibility in terms of magnetic permeability.
`X_(m)=mu_(r)-1`
(b) A is a diamagnetic material , B is a ferromagnetic material.