Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACQuality and Power factorEasy2 minPYQ_2020
PhysicsEasysingle choice

A seriesLCRcircuit is connected to an ac voltage source. WhenLis removed from the circuit, the phase difference between current and voltage isπ3. If insteadCis removed from the circuit, the phase difference is againπ3between current and voltage. The power factor of the circuit is:NEET 2020 (Phase 1)

Options:

Answer:
B
Solution:

As phase angle contribution by capacitor and inductor are equal in magnitude, so It means that the RLC circuit is in resonance condition. So, impedance at resonance, Thus, power factor,

Stream:NEETSubject:PhysicsTopic:EMI/ACSubtopic:Quality and Power factor
⏱ 2mℹ️ Source: PYQ_2020

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