We give a brief survey of the basic laws of magnetism, magnetic induction, and electrodynamics in the absence of matter, the wave equation, scalar and vector potentials, and invariance properties.
29.1 Ampere's Law and its Consequences
29.2 Faraday's Law and it Consequences
29.3 Maxwell's Consistent Equations
29.4 The Wave Equation
29.6 Invariance properties