CBSE 2026 · Region 1 · Set 1 · Q1 · 1 mark
In a region, the electric potential varies as $\displaystyle \mathrm{V}=10-50 x$, where V is in volts and $\displaystyle x$ in meters. The electric field in the region is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 50$ N/C along $\displaystyle +x$
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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.