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E8A12

What is the equivalent to the root-mean-square value of an AC voltage?

Select	Answer
A	The AC voltage found by taking the square root of the average AC value
B	The DC voltage causing the same heating in a given resistor as the peak AC voltage
C	The DC voltage causing the same heating in a given resistor as the RMS AC voltage of the same value
D	The AC voltage found by taking the square of the average value of the peak AC voltage

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