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Question 31584
JEE Physics · Hard

Capacitance: RC Charging – Energy Balance MCQ

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RC Charging – Energy BalanceHardQuestion 31584

Question

A capacitor C is charged from EMF source E through R. Total energy supplied by source equals:
  1. A
    ½CE²
  2. B
    CE²
    Correct
  3. C
    ¼CE²
  4. D
    2CE²

Correct answer

CE²

Explanation

Charge supplied = CE. Energy from source = QE = CE². Half (½CE²) stored in capacitor, half dissipated in R — regardless of R value.

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