CBSE 2024 · Region 3 · Set 1 · Q3 · 1 mark
A $\displaystyle 2.0$ cm segment of wire, carrying $\displaystyle 5.0$ A current in positive y-direction lies along $\displaystyle y$-axis, as shown in the figure. The magnetic field at a point $\displaystyle (3 \mathrm{~m}, 4 \mathrm{~m}, 0)$ due to this segment (part of a circuit) is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle -(0.24 \mathrm{nT}) \hat{\mathrm{k}}$
Moving Charges and MagnetismMagnetic Field due to a Current Element, Biot-Savart LawApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.