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Is that Larry, Curly, or Mho?
It certainly applies to both that's for sure. What I seem to recall is that the reason that VA is not the same as Watts exactly is because of the sine wave nature of AC current. The available power is only the area under the curve. The voltage we normally speak about is RMS (root mean square) voltage not peak voltage. RMS gives a pretty decent approximation of the power that would be available if we had square wave power at the stated voltage (as some older UPSs used to generate when on batteries) The peak voltage of an AC circuit is higher than RMS voltage and I believe the differnce is that between VA and Watts.
- Larry
ps: If the Ohm is the unit of measure of resistance, what is the unit of measure of conductance?
daparnin@xxxxxxxxxxxxxxxxxx wrote:
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