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15/09/2020 5:34 pm
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A series LCR circuit is connected to an ac voltage source. When L is removed from the circuit, the phase difference between current and voltage is π/3. If instead C is removed from the circuit, the phase difference is again π/3 between current and voltage. The power factor of the circuit is :
(1) 0.5
(2) 1.0
(3) -1.0
(4) zero
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15/09/2020 5:35 pm
Correct answer: (2) 1.0