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  • In the figure shown a coil of single turn is wound on a sphere of radius r and mass m. The plane of the coil is parallel to the inclined plane and lies in the equitorial plane of the sphere. If sph

In the figure shown a coil of single turn is wound on a sphere of radius r and mass m. The plane of the coil is parallel to the inclined plane and lies in the equitorial plane of the sphere. If sphere is in rotational equilibrium, the value of B is (Current in the coil is I)

Option: 1

\frac{\mathrm{mg}}{\pi \mathrm{Ir}}


Option: 2

\frac{\mathrm{mg} \sin \theta}{\pi \mathrm{l}}


Option: 3

\frac{\mathrm{mgr} \sin \theta}{\pi \mathrm{I}}


Option: 4

none of these


Answers (1)

best_answer

\mathrm{ Z_g-Z_B \\ }

\mathrm{ \Rightarrow m g \times r \sin \theta=1 \pi r^2 B \sin \theta }

Posted by

chirag

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