Question

Identify the following magnetic materials :

(i) A material having susceptibility (χ_m) = −0⋅00015.

(ii) A material having susceptibility (χ_m) = 10⁻⁵

Answer 1

For Diamagnetic materials, x_m < 0
For paramagnetic materials, x_m > 0
For superparamagnetic materials, x_m >>0

(i) if x_m =-0.00015 < 0, the material is Diamagnetic.

(ii) if x_m = 10^-5 > 0, the material is paramagnetic because the value of susceptibility is greater than zero but has a very small value.