Q. An elastic circular wire of length $l$ carries a current $I$. It is placed in a uniform magnetic field $\overrightarrow{B}$ (out of paper) such that its plane is perpendicular to the direction of $\overrightarrow{B}$. The wire will experience
A) No force
B) A stretching force
C) A compressive force
D) A torque
Explanation
(b) On applying Fleming’s left hand rule
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.