you cant really have an average power because the two halves of the sine wave would cancel each other out and the resultant would be zero. thats why the use the root mean square (rms)

[Edited on 27-11-2003 by kev_corsa]

yep, or peak to peak power (as in from the trough of a sine wave to the peak) its the square root of 2 multiplied by 2 :)

i'm sure i've seen that in one of my lectures :lol:

also, to get peak, or max power, multiply rms power by 1.4 (multiplying by the square root of 2 is more accurate but 1.4 is close enough)



[Edited on 24-11-2003 by cdcool1]

Root mean square (rms) is, literally, the square root of the mean of the square of a value. It is a process for calculating an average value for a fluctuating value (such as ac voltage or current.) The term rms power is referred to as the average power. A power amplifier rated as having "200 watts rms power" really puts out 200 watts of continuous sine wave power
found a definition :boggle:

ta :)

indeed it does :)

as above please:)