Q.
A horizontal rod of length $L$ rotates about a vertical axis with a uniform angular velocity $\omega.\ A\ uniform\ $magnetic field $B$ exists parallel to the axis of rotation. Then potential difference between the to ends of the rod is
A) $\omega L^{2}B$
B) $\omega^{2}LB$
C) $\frac{1}{2}\omega L^{2}B$
D) $\frac{1}{2}\omega^{2}LB$
Explanation
(c) The potential difference across the ends of the conductor
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ V = \frac{1}{2}\omega L^{2}B$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.