Moderate

Power factor of the following circuit will be unity

Correct answer: C. resistance

  • A. inductance
  • B. capacitance
  • C. resistance
  • D. both A. and B.

Explanation

A pure resistance has voltage and current in phase, so its power factor is cos 0° = 1. Pure inductance and capacitance have 90° phase difference and therefore zero power factor.

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