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Question 31547
JEE Physics · Medium

Capacitance: RC Discharging MCQ

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RC DischargingMediumQuestion 31547

Question

A capacitor discharges through resistance R. Current at time t is:
  1. A
    (V₀/R)e^(−t/RC)
    Correct
  2. B
    (V₀/R)(1−e^(−t/RC))
  3. C
    V₀/R
  4. D
    V₀Re^(−t)

Correct answer

(V₀/R)e^(−t/RC)

Explanation

During discharge, I(t) = I₀e^{−t/RC} where I₀ = V₀/R is the initial current.

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