Power factor and three-phaseQuestion 1160 of 1506

What is the power factor of a purely inductive circuit?

  1. 0
  2. 1
  3. 0.5
  4. Infinite
Show answer

Correct answer: 0

A purely inductive circuit has no true power, so the ratio of true to apparent power is zero.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 11.3: Calculating Power Factor

Practice power factor and three-phase

Questions last reviewed: 18 October 2026