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WBJEE · Physics · Electrostatics

The current flowing through a wire depends on time as \(I=3 t^2+2 t+5\). The charge flowing through the cross section of the wire in time from \(t=0\) to \(t=2 \mathrm{sec}\). is

  1. A \(22 \mathrm{C}\)
  2. B \(20 \mathrm{C}\)
  3. C \(18 \mathrm{C}\)
  4. D \(5 \mathrm{C}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(22 \mathrm{C}\)

Step-by-step Solution

Detailed explanation

\(Q=\int_0^2\left(3 t^2+2 t+5\right) d t=22 C\)
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