In http://www.allaboutcircuits.com/vol_2/chpt_11/1.html
it is stated that when we do power calculations for a circuit driven by an AC source specified as 120\(\angle\)0°, we use its magnitude because that's its RMS value.
But if the sinusoid is a vector of length 120 rotating around the origin, isn't its magnitude, ie. the greatest shadow it casts on an axis, 120? Meaning its P-P voltage is 120, not its RMS...
it is stated that when we do power calculations for a circuit driven by an AC source specified as 120\(\angle\)0°, we use its magnitude because that's its RMS value.
But if the sinusoid is a vector of length 120 rotating around the origin, isn't its magnitude, ie. the greatest shadow it casts on an axis, 120? Meaning its P-P voltage is 120, not its RMS...