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What is the power factor of a purely resistive AC circuit?
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: C —
Solution
- In a purely resistive AC circuit, the voltage and current are in phase with each other.
- The phase angle between the voltage and current is .
- The power factor is defined as , so we calculate .
- Hence the answer is (C).
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