Q
The power factor of a single phase load can be calculated if the instruments available are_____________?
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A
A. One voltmeter and one ammeter
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B
B. One voltmeter, one ammeter and one wattmeter
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C
C. One voltmeter, one ammeter and one energy meter
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D
D. Any of the above
Correct Answer:
B. B. One voltmeter, one ammeter and one wattmeter