State the meaning of permeability, write down the expression for the permeability of free space, and indciate how it was developed from the Biot-Savart Law.
Draw the B-H characteristic for:
a) a ferromagnetic material
b) a non-ferromagnetic material
and show how the permeability may be calculated from them.
Magnetic intensity, magnetic induction, permeability etc. are explained in details.