Re: What is Rms?

RMS stands for root mean square, it is used to compute the real value
of what you are measuring.
If you run 100% for 50% of the time and 0 for the other 50% you have a
effective rms of 50% of what you are measuring.
It is used in math analysis to determine the real effective value of
what you are measuring, power, voltage, amps etc.
That is why there are voltage meters that are true rms, and those that
are not. In ACV it makes a big difference what the freqency is, ie
60hz or 400hz. Ever wonder about the great stuff from the airforce
that you can't use.