RMS or root mean square is a way of finding a useful average value for a quantity that varies in a sinusoidal way. You square the values (which makes the sign irrelevant), take the mean of the square… (View Post)

Of course. I figured explaining phases is the point where I need to start charging for this... (View Post)

OK, a better one. Both UK and US mains have the same average voltage. Both true and very misleading. (View Post)

:) (View Post)

The “average”, or mean voltage of both is zero as they both alternate positive and negative. The root mean square or RMS values are about 230V and 120V though: plugging in equipment meant for the US … (View Post)