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Electrical mathQuestion 1501 of 1506

A load has an apparent power of 40 kVA and a power-triangle phase angle of 50 degrees. What is the reactive power?

  1. 25.7 kvar
  2. 30.6 kvar
  3. 47.7 kvar
  4. 52.2 kvar
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Correct answer: 30.6 kvar

Q = S × sin θ = 40 × sin 50° = 30.6 kvar. Q is the side opposite the angle.

Source: Computed, 11.2: True, Reactive, and Apparent Power

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Questions last reviewed: 18 October 2026