Jim Kelley wrote:

Cecil Moore wrote:
Current cannot stand still.

You keep saying that as if it was relevant.

It is relevant to the logical corner into which you have painted yourself.
There exists current at the base of a coil. It either flows into the coil
or away from the coil. There is simply no other place for it to go since
it cannot stand still.

Both in to and out of. Not one or the other.

You are forgetting your conventions. If the current at the bottom of the
coil is in phase with the feedpoint current, it is flowing the same
direction as the feedpoint current. By convention, the feedpoint current is
assumed to be flowing *into* the antenna. Therefore, by convention, the in-phase
current at the bottom of the coil is assumed to be flowing *into* the coil
referenced to the feedpoint current. EZNEC references all currents to the
feedpoint current which (surprise!) is feeding, i.e. flowing into the antenna.
If the current at the bottom of the coil is out of phase with the feedpoint current,
by convention, the current is flowing in the opposite direction to the feedpoint
current, i.e. out of the coil. What you say is irrelevant to the established
conventions.

What is a sophomoric notion is your notion that current doesn't flow when
it's associated with a coil.

I have no such notion.

You can't have it both ways, Jim. Either current flows into a coil or it
doesn't. I say it does for 1/2 cycle referenced to the source. You are
arguing with me about that assertion.

Then I observe that neither you nor Tom completely understands standing
waves.

I don't "completely understand" anything, Jim. It is delusional to believe
that you are unique in completely understanding anything. May I remind you
of something Einstein said: "One thing I have learned in a long life: that
all our science, measured against reality, is primitive and childlike ..."

The current in standing waves flows - it doesn't stand still. You have been
seduced by your math model. Current can only stand if dQ/dt equals zero.
Otherwise, it is flowing in one of two possible directions available in a
wire. Your notion of current phase is literally a figment of your imaginary
number imagination. All real-world non-zero current is real and, in a wire,
flows in only one of two possible directions. By convention, that direction
is the sign of the cosine term referenced to the source. The magnitude of
the current is Imax*cos(x). The phase is always either zero or 180 degrees.
There is absolutely no difference in 1a at 45 deg. and 0.707a at zero deg.
The j0.707a doesn't exist in reality.
--
73, Cecil http://www.qsl.net/w5dxp



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