Numerical - Power factor of load when reading of one wattmeter is four times the other wattmeter

Q.  If the reading of the one wattmeter is four times the other wattmeter while measuring the input power of 3 phase induction motor then the power factor of the load will be
- Published on 10 Nov 15

a. 0.56
b. 0.69
c. 0.74
d. 0.81

ANSWER: 0.69

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