Q. The expression for the torque acting on a coil having area of cross-section $A$, number of turns $n$, placed in a magnetic field of strength $B$, making an angle $\theta$ with the normal to the plane of the coil, when a current $i$ is flowing in it, will be
A) $ni\ AB\tan\theta$
B) $ni\ AB\cos\theta$
C) $ni\ AB\sin\theta$
D) $ni\ AB$
Explanation
The correct answer is Option C: $ni\ AB\sin\theta$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.