Question

The following figure shows the variation of intensity of magnetisation versus the applied magnetic field intensity, H, for two magnetic materials A and B :
(a) Identify the materials A and B.
(b) Why does the material B, have a larger susceptibility than A, for a given field at constant temperature?

Answer 1

(a) Material A is Paramagnetic.
Material B is Ferromagnetic.
Since paramagentic substances have a tendency to pull in mangetic field lines when placed in a magnetic field.