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MHT CET 2026 (14 May, Shift 2) · LC Oscillations

LC Oscillations question from MHT CET 2026 (14 May, Shift 2)

Q3MHT CET 2026 · 14 MAY · SHIFT 2Easy

LC Oscillations

A 10 μ10\ \muF capacitor is charged to 2525 V of potential. The battery is then disconnected and a pure 100100 mH coil is connected across the capacitor so that L-C oscillations are set up. The maximum current in the coil is

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Answer: (a)

  1. 12CV2=12LImax2⇒Imax=VC/L\frac{1}{2}CV^2 = \frac{1}{2}LI_{max}^2 \Rightarrow I_{max} = V\sqrt{C/L}
  2. Imax=2510×10−60.1=25×0.01I_{max} = 25\sqrt{\frac{10\times10^{-6}}{0.1}} = 25\times 0.01
  3. Imax=0.25I_{max} = 0.25 A, so the answer is (a).
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