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Network TheoryAC Power

A load consumes 800 W at a power factor of 0.8 lagging. Its apparent power is?

  • A640 VA
  • B800 VA
  • C1000 VA
  • D1250 VA
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Correct Answer: C. 1000 VA
Explanation: Apparent power S = P/pf = 800/0.8 = 1000 VA.
Reference: Standard network theory: ac power
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