how is it used to determine voltage in AC ?
2007-11-05 03:19:12 · 4 answers · asked by double_drago 3 in Science & Mathematics ➔ Engineering
the power dissipated in one cycle of the ac wave. or is it something like that?
2007-11-05 17:06:35 · answer #1 · answered by Aaron A 3 · 0⤊ 0⤋
It is a way to find the average voltage in an AC current. First square the equation describing the AC current (it may be a sin/cos wave or some other more complex wave or piecewise equation, it really doesn't matter). Then the mean value of the new equation must be found by integrating it from one point on the wave to that same point on the next wave cycle and dividing by the distance between the points. This is another way of saying, find the area under the equation and divide by the length. Then find the square root of the mean. This number is the AC voltage.
2007-11-05 08:12:48 · answer #2 · answered by Kevin D 2 · 0⤊ 0⤋
It's the 'area under the curve` averaged to
1/2 cycle.
It is used to determine power delivered.
2007-11-05 09:46:06 · answer #3 · answered by Irv S 7 · 0⤊ 0⤋
The following link might be useful: http://www.kpsec.freeuk.com/acdc.htm
2007-11-05 04:22:09 · answer #4 · answered by Fxer 2 · 0⤊ 0⤋