Tom Donaly wrote:
Cecil Moore wrote:
So there's the challenge. Simply prove that 2" dia coils one
foot apart in air transfer all the energy from one coil to
the other. Piece of cake.

What lumped circuit theory? It's a simplification and everyone
knows it. Don't set up any more straw men than you have to, Cecil.

It's not a straw man if someone actually believes it. We
have a 2" dia. x 12" long coil. That's a length to diameter
ratio of 6/1. There's no way coil 1 links all its flux to
coil 100. Yet the *measured* delay through that coil was
3 nS. EZNEC says the delay through a better linked 70 uH
coil is 6.22 nS.

Have you noticed that the coils having instantaneous
propagation times have been getting smaller and smaller
and more conceptual rather than real?
--
73, Cecil http://www.qsl.net/w5dxp