Power factor and three-phaseQuestion 1171 of 1506

A load has 3 kW true power and 4 kVAR reactive power on 240 V. A capacitor is added that supplies 4 kVAR. What is the new apparent power?

  1. 5 kVA
  2. 3 kVA
  3. 7 kVA
  4. 1 kVA
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Correct answer: 3 kVA

The reactive powers cancel, so the apparent power equals the true power: 3 kVA.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 11.4: Practical Power Factor Correction

Practice power factor and three-phase

Questions last reviewed: 18 October 2026