Richard Harrison wrote:
Cecil, W5DXP wrote:
"The current does take a short-cut due to adjacent coil coupling."

R.W.P. King wrote on page 81 of Transmission Lines, Antennas, and Wave
Guides:
"The electromagnetic field in the near zone is characterized by an
inverse-square law for amplitude and by quasi-instantaneous action."

I still don`t know what to make of King`s assertion regards
instantaneous action.

From the IEEE Dictionary: "instantaneous - A qualifying term
indicating that no delay is purposely introduced in the action
of the device."

Does anyone have a formula for the coupling factor between
turns in a coil?
--
73, Cecil http://www.qsl.net/w5dxp