CBSE 2023 · Region 3 · Set 2 · Q4 · 1 mark
An infinitely long uniformly charged wire produces an electric field of $\displaystyle 18 \times 10^{4} \mathrm{NC}^{-1}$ at a distance of $\displaystyle 1 \cdot 0 \mathrm{~cm}$. The linear charge density on the wire is :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 1.0 \times 10^{-7} \mathrm{Cm}^{-1}$
Electric Charges and FieldsApplications of Gauss’s LawApplymcqmedium
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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.