CBSE 2025 · Region 6 · Set 3 · Q1 · 1 mark
The ratio of potential difference across $\displaystyle A B$ in the circuit shown for the case (i) when switch S is closed and (ii) when S is open is :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 2$
Current ElectricityKirchhoff’s RulesApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.