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A sampling wattmeter (that computes power from simultaneously sampled values of voltage and current) is used to measure the average power of a load. The peak to peak voltage of the square wave is 10 V and the current is a triangular wave of 5 A p-p as shown in the figure given below. The period is 20 ms given below. The reading in W will be
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- 0 W
- 25 W
- 50 W
- 100 W
Correct Option: A
I f we consider both the waves, we can see positive power and negative power in each cycle is equal.
∴ Net power = 0 
