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Half Wave Rectifier

In an RLC cir...

Question

In an RLC circuit at resonance power factor is
A. 0.5
B. -0.5
C. 1
D. 0

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Solution

At resonance current and voltage are in same phase so phase difference is 0 degree
powerfactor = cos(phase difference)
Power factor = cos 0
Power factor = 1

So option C is correct.

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