A computer draws an rms current of 3.90 A at an rms voltage of 120 V....

Question

Question

A computer draws an rms current of 3.90 A at an rms voltage of 120 V. The average power consumption is 220 W. What is the power factor?

Answer 1

Answer #1

Formula to be used is

Power = Rms Voltage X RMS Current X power factor

P = ( V_rms) X ( I_rms ) X PF ..................... put in values

220 W. = 120 V X 3.90 A X PF

PF = (220 W) / (120 V X 3.90 A)

= 0.47

ANSWER = power factor is 0.47

Answer 2

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