With a purely resistive load, you should be able to establish the peak through timing. At 60Hz it will occur 4.17mS after ZC while at 50Hz it will occur 5mS after ZC.
However, this will change...
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With a purely resistive load, you should be able...
With a purely resistive load, you should be able to establish the peak through timing. At 60Hz it will occur 4.17mS after ZC while at 50Hz it will occur 5mS after ZC.
However, this will change...
From...
From http://en.wikipedia.org/wiki/Root_mean_square
"Thus the peak value of the mains voltage in the USA is about 120 × √2, or about 170 volts."
Working backwards from that, 1/√2*Vpk=Vavg or...