Near a circular loop of conducting wire as shown in the figure an electron moves along a straight line. The direction of the induced curren if any in the loop is

Options

A. variable
B. clockwise
C. anticlockwise
D. zero

Answer

A

Explanation

When an electron is moving from right to left, the flux linked with loop (which is out of the page) will first increase and then decrease as the electron passes by. So the induced current `I_(i)` in the loop will be first clockwise and will change direction (i.e. will become anticlockwise) as the electron passes by.