Using I = 2A, B = 1 T, we get IM = 794 A 5 5 MAGNETIC PROPERTIES OF MATERIALS
The discussion in the previous section helps us to classify materials as
diamagnetic, paramagnetic or ferromagnetic In terms of the susceptibility
c, a material is diamagnetic if c is negative, para- if c is positive and small,
and ferro- if c is large and positive