The magnetic field B and the magnetic intensity H in a material are found to be 1.6 T and 1000 A m^–1 respectively. Calculate the relative permeability μ_r and the susceptibility of the material.

Given:

Magnetic field in the material=1.6T

Magnetic intensity H=1000Am^-1

The relation between permeability , magnetic field B and magnetizing intensity H are given by formula

…(i)

The relation between permeability and relative permeability is given by

……(ii)

Using eqns. (i) and putting in eqn.(ii) we get

Putting the values of B,H and μ₀ we get

Therefore, relative permeability is 1.3× 10³

the relation between susceptibility and relative permeability ( is given by

Putting the value of μ_r we get

Therefore, susceptibility of material is also approximately equal to 1.3× 10³