CBSE 2025 · Region 6 · Set 2 · Q1 · 1 mark
A wire of resistance $\displaystyle R$, connected to an ideal battery consumes a power $\displaystyle \mathrm{P}$. If the wire is gradually stretched to double its initial length, and connected across the same battery, the power consumed will be:
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle \frac{\mathrm{P}}{4}$
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