On Jun 24, 8:58*pm, Keith Dysart wrote:
Still does not explain why you choose only the positive root.

Of course it does. In the power density equation, choosing the
negative root would lead to a violation of the conservation of energy
principle. When one of the roots is obviously impossible in reality, a
rational person chooses the other root.

You might study why the real power folk prefer three phase to single.
It all has to do with instantaneous power.

I am a "real power folk", Keith. My first EE degree was in power
generation and transmission. Three-phase puts less stress on the
system by eliminating the hills and valleys in the energy flow common
with traveling waves. But why do you believe that three-phase power
transmission is relevant to ham radio? Are you running three-phase RF?

Maxwell's equations don't even work for your mashed-potatoes version
of energy. That should tell you something.
--
73, Cecil, w5dxp.com