Numerical - Calculate power factor of motor, given readings of two wattmeter are 850 W and 250 W

Q.  The readings of the two wattmeter used for the measurement of power input to a 3 phase induction motor are 850 W and 250 W respectively. The power factor of the motor is
- Published on 14 Sep 15

a. 0.73
b. 0.76
c. 0.79
d. 0.85

ANSWER: 0.73

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