Give any one defination of power factor.

Explanation

The power factor of a circuit is defined in one of the following ways:
i. Power factor`=cosphi=`cosine of the angle of lead or lag
ii. `"Power factor"=(R)/(S)=("Resistance")/("Impedance")`
iii. `"Power factor"=(VIcosphi)/(VI)=("True power")/("Apparent power")`