Hank, and Richard, For a good explanation of this subject I always liked the
book: "Introduction to Electromagnetic Fields" by Paul and Nasar. The first
two chapters of mathematical review are excellent. I see barnesandnoble.com
has the 3rd edition, used, for as low as $66. John D. Kraus' book;
"Electromagnetics" is also a very good text.

73,

Frank