CBSE 2026 · Region 5 · Set 1 · Q12 · 1 mark
The rms and the average value of an ac voltage $\displaystyle \mathrm{V}=\mathrm{V}_{0} \sin \omega \mathrm{t}$ volt over a cycle respectively will be :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \frac{\mathrm{V}_{0}}{\sqrt{2}}, 0$
Alternating CurrentRepresentation of AC Current and Voltage by Rotating Vectors — PhasorsApplymcqeasy
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CBSE Class 12 Physics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.