Physics - EMI/AC Question with Solution | TestHub
PhysicsEMI/ACSeries AC CircuitsMedium2 min
PhysicsMediummultiple choice
An alternating emf of frequency is applied to a series LCR circuit. For this frequency of the applied emf.
Options:(select one or more)
Answer:
B, D
Solution:
The given frequency is the resonant frequency (). At resonance, the inductive reactance () equals the capacitive reactance (), making the circuit purely resistive.
Therefore, the impedance is minimum and purely resistive (), the current is maximum and in phase with the applied emf, and the power factor is 1. The quality factor describes resonance sharpness and voltage magnification.
Thus, options B and D are correct.
Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:Series AC Circuits
⏱ 2m
Doubts & Discussion
Loading discussions...