Roy Lewallen wrote:
Dave wrote:
"Keith Dysart" wrote:
Can you kindly articulate the rules you use to know
when it is appropriate to use P = V * I?

it is extremely simple. use traveling waves then V*I works everywhere
all the time. use standing waves and it fails. period, end of story.

It does not fail.

Good grief, Roy. The net voltage is 100v. The net current
is 1 amp. The load is infinite. P does NOT equal 100 watts.
P equals zero. P does not equal V * I. P = V*I*cos(A) where
A = 90 degrees.

What the hell is wrong with you people?
--
73, Cecil http://www.w5dxp.com