Physics-AC Voltage
NEET Physics AC Voltage MCQ Question
Type: MCQ-numerical-Easy-Class 12
In a series LCR circuit with L = 0.12 H, C = 480 nF, and R = 23 Ω connected to a 230 V variable frequency supply, what is the source frequency for which current amplitude is maximum?
A
650 Hz
B
700 Hz
C
750 Hz
D
800 Hz
Correct Answer
Option A
Detailed Explanation
The current amplitude is maximum at the resonant frequency, which is given by f = 1/(2π√(LC)). Substituting L = 0.12 H and C = 480 nF, we calculate f ≈ 650 Hz.
Found an issue with this question?
Related Questions
More from AC Voltage
More from
In an AC circuit, the power factor is given by cosφ, where φ is the phase difference between voltage and current. If the rms voltage is 220 V, rms cur...
Power in AC CircuitsPhysics
In the context of an LC circuit, which of the following statements about energy oscillation and conservation is correct?
(general)Physics
In the free oscillations of an LC circuit, what remains constant over time?
(general)Physics