CBSE 2026 · Region 1 · Set 2 · Q3 · 1 mark
A copper wire is stretched to increase its length by $\displaystyle 1$%. Then the change in its resistance is close to
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 2$%
Current ElectricityTemperature Dependence of ResistivityApplymcqmedium
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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.