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MHT CET 2026 (17 Apr, Shift 2) · Pure R, L and C Circuits

Pure R, L and C Circuits question from MHT CET 2026 (17 Apr, Shift 2)

Q13MHT CET 2026 · 17 APR · SHIFT 2Easy

Pure R, L and C Circuits

In LCR circuit, at a particular angular frequency the capacitive reactance and inductive reactance is same. If the angular frequency is doubled, the ratio of the reactance of the capacitor to that of the inductor will be

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Answer: (a)

  1. XC=1ωCX_C = \frac{1}{\omega C} and XL=ωLX_L = \omega L, so XCXL=1ω2LC∝1ω2\frac{X_C}{X_L} = \frac{1}{\omega^2 LC} \propto \frac{1}{\omega^2}.
  2. Initially XCXL=1\frac{X_C}{X_L} = 1. Doubling ω\omega gives XC′XL′=122=14\frac{X_C'}{X_L'} = \frac{1}{2^2} = \frac{1}{4}.
  3. So the answer is (a) 14\frac{1}{4}.
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