On Sun, 27 Mar 2005 15:12:17 +0000 (UTC), someone wrote:

At one point in the cycle, the hot wire has a +120V potential, and the
neutral (and ground) wires are at 0, for a voltage differential of
120V. At the opposite point in the cycle, the hot wire has a -120V
potential, and the neutral (and ground) wires are at 0, for a voltage
differential of 120V "in the opposite direction".

Not exactly how it works, but not far off. Actually technically true
just like a stopped clock is right twice a day, at some point the
cycle will pass thru 1v and 120v but the max potential is more than
120 and the generally accepted method of averaging or figuring the net
effect (I believe that's root mean squared???) "averages" out to 120.


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