CBSE 2024 · Region 3 · Set 2 · Q4 · 1 mark
Two thin long parallel wires separated by a distance 'a' carry current ' I ' in opposite directions. The wires will :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Repel each other with a force $\displaystyle \frac{\mu_{0} \mathrm{I}^{2}}{2 \pi \mathrm{a}}$, per unit length.
Moving Charges and MagnetismForce between Two Parallel Currents, the AmpereUnderstandmcqeasy
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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.