Magnetic and Electric Potentials
Using the definitions of the potentials,
and the constitutive relation
B
= μ
0
(
H
+
M
), Ampère’s law can be rewritten as
(2-20)
The equation of continuity, which is obtained by taking the divergence of the above equation, adds the following equation:
(2-21)
Equation 2-20
and
Equation 2-21
form a system of equations for the two potentials
A
and
V
.
