Q. Consider the situation shown in the figure. The wire $AB$ is sliding on the fixed rails with a constant velocity. If the wire $AB$ is replaced by semicircular wire, the magnitude of the induced current will
A) Increase
B) Remain the same
C) Decrease
D) Increase or decrease depending on whether the semicircle bulge is towards the resistance or away from it
Explanation
(b) Effective length between $A$ and $B$ remains same
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.