"Tdonaly" wrote in message
...
Steve's info will get you a beginners understanding of circuit
theory

That WAS the intent.


which is based on a low-frequency, quasi-static simplification
of electromagnetic theory.

Yikes! Call it what you like.

Unfortunately, anything that has any
appreciable length, such as a transmission line or an antenna...
wave mechanics to get any real idea of what is happening
in these situations.

I guess you can call it "wave mechanics" if you like, but it IS true
that what happens on a transmission line is waves and this is quite
different from simple circuit theory. First you need the circuit theory,
though.


That isn't the end of it, though, since in order
to understand what is happening when an object radiates, you
have to understand Maxwell's equations....vector calculus.

This I'll disagree with. It's been so long since I studied
Maxwell's equations, I can't even spell his name, but I can give a workable
explanatin of radiation that the beginner can understand and won't cause
trouble for any ham's purposes. Will it violate old Maxwell? I don't know
and don't care for my purposes and 90% of the people interested.


That isn't the
end, either, but it's as close as any *normal* human wants to go.

Whew! sure glad I'm *abnormal*.


Whenever someone who was taught circuit theory tries to
apply its vocabulary and concepts to explain all electromagnetic
phenomena, that someone is going to run into trouble and
come up with a multitude of idiocies for which which he'll find no end of
people ready to criticize him.

Whoa... Sure glad I'm not trying to do THAT!


This is the problem: Cecil and Yuri want to explain the current taper
through a long solenoidal coil using the vocabulary and concepts of
circuit theory rather than the difficult but more precise
language of electromagnetic theory.

Sure glad I don't care and that I didn't tack my post onto theirs
thus indicating that I was trying to enter that discussion.


73 Steve--
Steve N, K,9;d, c. i My email has no u's.