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Physics · 2025 · 1 mark
CBSE 2025 · Region 2 · Set 1 · Q3
A 1 cm straight segment of a conductor carrying 1 A current in x direction lies symmetrically at origin of Cartesian coordinate system. The magnetic…
A $\displaystyle 1$ cm straight segment of a conductor carrying $\displaystyle 1$ A current in $\displaystyle x$ direction lies symmetrically at origin of Cartesian coordinate system. The magnetic field due to this segment at point ( $\displaystyle 1 \mathrm{~m}, 1 \mathrm{~m}, 0$ ) is
Official answer
(C)
$\displaystyle \frac{5.0}{\sqrt{2}} \times 10^{-10} \hat{\mathrm{k}} \mathrm{T}$
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CBSE Class 12 Physics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.