Numerical - Power factor of motor for given power measurements of two wattmeters
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 10 Nov 15a. 0.73
b. 0.76
c. 0.79
d. 0.85
ANSWER: 0.73