Q.
Current from $A\ \ and\ B$ in the straight wire is decreasing. The direction of induced current in the loop, is
A) Clock-wise
B) Anti-clock-wise
C) Changing
D) Nothing can be said
Explanation
(b) As current is decreasing, magnetic flux linked with the loop in the upward direction (acceleration to right hand thumb rule) is decreasing. Current induced in loop must be anti-clock-wise to oppose the decrease in magnetic flux.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.