CBSE 2026 · Region 1 · Set 1 · Q11 · 1 mark
Two heaters rated as $\displaystyle \left(\mathrm{P}_{1}, \mathrm{~V}\right)$ and $\displaystyle \left(\mathrm{P}_{2}, \mathrm{~V}\right)$ are connected in series across a dc source of $\displaystyle \frac{\mathrm{V}}{2}$ volt. The power consumed by the combination will be -
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle \frac{\mathrm{P}_{1} \mathrm{P}_{2}}{4\left(\mathrm{P}_{1}+\mathrm{P}_{2}\right)}$ $\displaystyle 1$ $\displaystyle 1$ $\displaystyle 1$ $\displaystyle 1$ P.T.O.
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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.