Cecil Moore wrote:

Art Unwin KB9MZ wrote:
Did you find something wrong with my suggestion above?

Nope, nothing "wrong". I just avoid making assertions when I'm
not 95% certain that I am correct. Thus, most of the time, I am
unresponsive. I am 95% certain that the average humongous mobile
loading coil is not "physically small" and is more like a
certain percentage of a helical antenna which indeed does
obviously demonstrate a net current gradient.

It's certainly true that such a coil is not 'electrically' small.

73, Jim AC6XG