Question
An ac circuit contains a resistance of 1 k , a capacitor of 0.1\ F and an inductor of 1 mH connected in series. The resonance frequency of the circuit is approximately :
NEET
Physics
Alternating Current
2026
NEET 2026 (Cancelled)
NEET Physics Question (2026) — Solution
Options
- A. 13.5 kHz
- B. 10.1 kHz
- C. 20.7 kHz
- D. 15.9 kHz
Answer
D. 15.9 kHz
Step-by-step solution
Given L = 1 mH = 10^ -3 H and C = 0.1\ F = 10^ -7 F . The resonance frequency of a series RLC circuit is given by f_r = 1 2 LC . Substituting the values: f_r = 1 2 10^ -3 10^ -7 f_r = 1 2 10^ -10 f_r = 10^5 2 Hz f_r = 50 kHz 15.9 kHz Answer: 15.9 kHz
Related: Physics — Alternating Current · All PYQ Banks