Decrease in p.f. makes Vs to lead Vp. A. True B. False The question

decrease-in-p-f-makes-vs-to-lead-vp-a-true-b-false-the-question

Decrease in p.f. makes Vs to lead Vp.

A. True

B. False

The question was posed to me in examination.

This key question is from Characteristics of Potential Transformers in division Extension of Instrument Ranges of Electrical Measurements

Correct choice is A. True

The explanation: As the power factor is decreased, Vs leads in phase while Vp decreases in phase. Thus the phase angle reduces with the decrease in power factor (lagging).