1. Does my thru-line wattmeter indicate RMS or P-P power?
Typically RMS, but there is a time constant involved in the meter
movement, and some versions are/can be peak reading. Keep in mind that
most wattmeters, thru-line included, don't actually measure power but
voltage induced in a
Fred and all,
Your power meter will try to show either average or peak power - no
relationship to RMS for either of these.
Extended 'TECH TALK' follows:
Power is always computed using RMS values. For power measurements, there is
some sense in referring to either INSTANTANEOUS power or AVERAGE
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