Physics · 2022
JEE Main · 26 June 2022, Shift 2 · Q42
A bar magnet having a magnetic moment of 2.0 × 10^5 JT^-1, is placed along the direction of uniform magnetic field of magnitude B =14 × 10^-5 T. The…
A bar magnet having a magnetic moment of $\displaystyle 2.0 \times 10^5 \mathrm{JT}^{-1}$, is placed along the direction of uniform magnetic field of magnitude $\displaystyle \mathrm{B}=14 \times 10^{-5} \mathrm{~T}$. The work done in rotating the magnet slowly through $\displaystyle 60^{\circ}$ from the direction of field is :
Official answer
(1)
$\displaystyle 14$ J
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.