Question

A wire of irregular shape turning into a circular shape in a magnetic field which is directed into the paper. The direction of induced current is

• A. Along abcda
• B. Along adcba
• C. Into the plane of the paper
• D. Out of the plane of the paper

Answer 1

Answer: (B)

Along adcba

Answer 2

When a wire of irregular shape turns into a circular loop, area of the loop tends to increase therefore magnetic flux linked with the loop increase according to Lenz’s law the direction of induced current must oppose the magnetic flux, for which induced current should flow along adcba.