1.

What is the power factor of a series RLC circuit under resonance condition?(a) 0(b) 1(c) Infinity(d) 100The question was asked in an internship interview.My question is based upon Frequency Variation in a Series RLC Circuit in chapter Resonance in AC Circuits of Basic Electrical Engineering

Answer»

Right choice is (b) 1

For EXPLANATION: The power factor for a SERIES RLC circuit in resonance condition is always UNITY because the current is in PHASE with the voltage under resonance condition.

Φ=0^0 => cos ϕ = 1i.e.power factor = 1.



Discussion

No Comment Found

Related InterviewSolutions