Question

In an AC circuit, the maximum and minimum values of power factor can be ___________

(a) 2 and 0

(b) 1 and 0

(c) 0 and -1

(d) 1 and -1

The question was asked in homework.

This question is from Advanced Problems on Application of Laplace Transform topic in chapter Application of the Laplace Transform in Circuit Analysis of Network Theory

Answer 1

Correct option is (b) 1 and 0

The best I can explain: We know that, power factor is maximum and equal to 1 for a purely resistive load. Power factor is minimum and equal to zero for a purely reactive load.

Hence, in an AC circuit, the maximum and minimum values of power factor are 1 and 0 respectively.