Question

The relative permeability of a material is
i) 0.999
ii) 1.001
Identify the material.

Answer 1

$\left(i\right)$ If relative permeability of medium is $0.999$ $($slightly less than 1$),$ it is diamagnetic substance$.$

$\left(ii\right)$ If relative permeability of medium is $1.001$ $($slightly greater than 1$),$ it is a paramagnetic substance$.$