Current through coils
Cecil Moore wrote:
K7ITM wrote:
Cecil is unable (and believes it is
impossible) to determine the net charge in the volume containing the
coil as a function of time (to within a constant, at least), even
though the the wires in which we know the currents are the only way for
charge to get in and out of that volume.
THERE IS NO RF BATTERY STORING ENERGY! THERE IS ZERO LONG TERM
ACCUMULATION OF CHARGE! Neglecting losses, energy in exactly equals
energy out over the long term.
The fact that 2 amps of standing wave current exists at the bottom of
the coil and 1.4 amps of standing wave current exists at the top of
the coil doesn't imply any long term accumulation of charge. Long
term accumulation of charge in a coil is impossible.
Cecil,
I believe the long term average current is also zero. Therefore all of
these coils and antennas are totally inert. Problem solved.
It is a mystery why the discussion randomly switches from degrees of
phase and nanoseconds of time delay to long term averages, RMS, and
"net" something or other.
If you don't understand accumulation of charge in *every* AC and RF
circuit then there is little hope that you will ever get to an
understanding of the now-infamous "current through coil" problem.
73,
Gene
W4SZ
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