Q.
The current from $A\ to\ B$ is increasing in magnitude. What is the direction of induced current, if any, in the loop shown in figure.
A) No current is induced
B) Clock-wise current
C) Anti-clock-wise current
D) Alternating current
Explanation
(b) Magnetic flux through the loop is upward and its is increasing due to increasing current along $AB$. Current induced in the loop should have magnetic flux in the downward direction so at to oppose the increase in flux. Therefore, current induced in the loop is clockwise.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.