CBSE 2026 · Region 3 · Set 1 · Q2 · 1 mark
A square loop of side $\displaystyle 50$ cm is placed in a uniform magnetic field of $\displaystyle 3$‧$\displaystyle 0$ T acting perpendicular to the plane of the loop. If the loop is rotated through an angle of $\displaystyle 90$° in $\displaystyle 0.3$ s, the value of emf induced in the loop would be :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 0$•$\displaystyle 25$ V
Electromagnetic InductionFaraday’s Law of InductionApplymcqmedium
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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.