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Q:

In a series RLC circuit for lower frequency and for higher frequency, power factors are respectively ______________

A) Leading, Lagging B) Lagging, Leading
C) Independent of Frequency D) Same in both cases
 
Answer & Explanation Answer: A) Leading, Lagging

Explanation: A Leading power factor means that the current in the circuit leads the applied voltage. This condition occurs in capacitive circuits. On the other hand, a lagging power factor indicates that current lags the voltage and this condition happens in an inductive circuit.

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