CBSE 2023 · Region 2 · Set 3 · Q11 · 1 mark
The current in a device varies with time $\displaystyle \mathrm{t}$ as $\displaystyle I=6 \mathrm{t}$, where $\displaystyle I$ is in mA and $\displaystyle \mathrm{t}$ is in $\displaystyle s$. The amount of charge that passes through the device during $\displaystyle \mathrm{t}=0 \mathrm{~s}$ to $\displaystyle \mathrm{t}=3 \mathrm{~s}$ is
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 27$ mC
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.