Physics-AC Voltage
NEET Physics AC Voltage MCQ Question
Type: MCQ-numerical-Medium-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 resonant frequency (f_r) of the circuit?
A
1000/π Hz
B
2500/π Hz
C
1500/π Hz
D
2000/π Hz
Correct Answer
Option A
Detailed Explanation
The resonant frequency f_r is given by the formula f_r = 1/(2π√(LC)). Plugging L = 0.12 H and C = 480 nF into the formula yields f_r = 1000/π Hz.
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