John Popelish wrote:
Cecil Moore wrote:
Everything about RMS standing wave current
can be understood simply by
superposing the RMS values of forward and reflected current.
Boing!
You might want to think about that sentence for a while.
Let me rephrase. Everything about RMS standing wave
current can be understood simply by superposing the
values of the forward and reflected current phasors
whose phasor length is (usually) represented by their
RMS values.
The phasor arrow length is customarily the RMS value
of the phasor so the superposition of phasors turns out
to result in an RMS value. That's what I meant.
When EZNEC says the source current is 1.0 amp at zero
degrees, that is an RMS value. If the source voltage
is 50 volts at zero degrees, multiplying voltage by
current will yield the power input, i.e. 50 watts.
--
73, Cecil
http://www.qsl.net/w5dxp