CBSE 2024 · Region 1 · Set 2 · Q2 · 1 mark
A charged sphere of radius $\displaystyle r$ has surface charge density $\displaystyle \sigma$. The electric field on its surface is E. If the radius of the sphere is doubled, keeping charge density the same, the ratio of the electric field on the old sphere to that on the new sphere will be :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 4$
Electric Charges and FieldsGauss’s LawApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.