Power factor of an electrical circuit is equal to?

(A) R/Z

b) Cosine Of Phase Angle Difference Between current And Voltage

c) Kw/Kva

d) Ratio Of Useful Current To Total Current iw/I

e) All the above

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The Power factor of an electrical circuit is equal to

R/Z, cosine of phase angle difference between current and voltage, kW/kVA.So the answer is

e) All the above.The power factor of a circuit is equal to Where R/Z is the cosine of the phase angle difference between current and voltage, kW/kVA is the power factor.

Since this is a linear function of magnitude, it can easily be computed analytically or numerically from the relationship: R = (V / I) (R / Z) kV = V / I kV

where V is the voltage supply, and Z Impedance

The power factor is a measurement of the efficiency of an electrical circuit. It reveals the efficiency or how many kilowatts can be generated from a specific amount of electricity. A circuit with a low power factor will generate more watts than it needs to keep its own internal energy constant.

In a circuit, the power factor (PF) is equal to all of the above ( Z, cosine of phase angle difference between current and voltage, kW/kVA, Ratio Of Useful Current To Total Current Kw/I)