The power factor at resonance in R-L- C parallel circuit is________?
Correct answer: D. unity
- A. zero
- B. 0.08 lagging
- C. 0.8 leading
- D. unity
Explanation
At parallel R-L-C resonance, the inductive and capacitive susceptances cancel, leaving the supply current in phase with the voltage. Hence the circuit power factor is unity.
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