ABSTRACT

This chapter aims to provide the reader with a concise review of those elements of classical electromagnetic theory which will be particularly useful with regard to understanding the physical content. It considers charges in uniform motion and thus will be dealing with conductors of electricity, which are materials in which the charge carriers are free to move under steady electric fields; this definition of conductor includes not only standard conductors such as metallic substances, but also imperfect dielectric media, and so the charge carriers may be either electrons or positive or negative ions. Probably the most important of all consequences of Maxwell’s equations are the equations governing electromagnetic wave propagation; while the relevant wave equations are presented in most texts on the subject only for wave propagation in a linear medium.