Physics · 2016
NEET 2016 · 24 July · Code AA · Q28
A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equilibrium state. The energy required to rotate it by…
A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equilibrium state. The energy required to rotate it by $\displaystyle 60$° is $\displaystyle W$. Now the torque required to keep the magnet in this new position is
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle \sqrt{3} W$
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NEET (UG) 2016 Physics question, with the answer from NTA’s final answer key. Where our answers come from.