Q. An electron moves along the line PQ which lies in the same plane as a circular loop of conducting wire as shown in figure. What will be the direction of the induced current in the loop?

A) Anticlockwise
B) Clockwise
C) Alternating
D) No current will be induced
Explanation

(a) From right hand thumb rule, the magnetic field passing through the loop due to the current $i$ will be perpendicular to the plane of the page pointing downwards. The direction of current in the loop will be such as to oppose the increase of this field (Lenz’s law), hence direction of induced current in the loop is anticlockwise.
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Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.