Magnetic and Electric Potentials

Using the definitions of the potentials,

and the constitutive relation B = μ0(H + M), Ampère’s law can be rewritten as

(10-3)

The equation of continuity, which is obtained by taking the divergence of the above equation, adds the following equation:

(10-4)

Equation 10-3 and Equation 10-4 form a system of equations for the two potentials A and V.