Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACQuality and Power factorHard2 minPYQ_2012
PhysicsHardsingle choice

In an electrical circuit and an voltage source are all connected in series. When is removed from the circuit, the phase difference between the voltage and the current in the circuit is . If instead, is removed from the circuit, the phase difference is again . The power factor of the circuit isNEET 2012 (Screening)

Options:

Answer:
C
Solution:

Here, phase difference When, is removed When is removed Hence, in resonant circuit Power factor It is the condition of resonance therefore phase difference between voltage and current is zero and power factor is .

Stream:NEETSubject:PhysicsTopic:EMI/ACSubtopic:Quality and Power factor
⏱ 2mℹ️ Source: PYQ_2012

Doubts & Discussion

Loading discussions...