Art wrote:
"Frank, What is the name of the actual book you are quoting from?"

Read the posting!

"Engineering Eleactromagnetics, 2nd edition", Nathan Ida, ISBN
0-387-20156-4."

My unsolicited comment: Lyndon Johnson once described someneone like you
approximately as: "He couldn`t pour beer out of a boot if instructions
were stamped on the heel."

Best regards, Richard Harrison, KB5WZI