CBSE 2024 · Region 2 · Set 3 · Q6 · 1 mark
In an ac circuit, the instantaneous values of current (in A) and voltage (in V ) are $\displaystyle \mathrm{I}=5 \sin \omega \mathrm{t}$ and $\displaystyle \mathrm{E}=200 \cos \left(\omega \mathrm{t}+\frac{\pi}{3}\right)$ respectively. The phase difference between voltage and current at any instant is :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle \frac{5 \pi}{4}$
Alternating CurrentRepresentation of AC Current and Voltage by Rotating Vectors — PhasorsApplymcqeasy
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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.