CBSE 2024 · Region 3 · Set 1 · Q5 · 1 mark
A current carrying circular loop of magnetic moment $\displaystyle \overrightarrow{\mathrm{M}}$ is suspended in a vertical plane in an external magnetic field $\displaystyle \overrightarrow{\mathrm{B}}$ such that its plane is normal to $\displaystyle \overrightarrow{\mathrm{B}}$. The work done in rotating this loop by $\displaystyle 45^{\circ}$ about an axis perpendicular to $\displaystyle \overrightarrow{\mathrm{B}}$ is closest to :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
0.$\displaystyle 3$ MB
Moving Charges and MagnetismTorque on Current Loop, Magnetic DipoleApplymcqmedium
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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.