A charged particle moves along the line AB which lies in the same plane of a circular loop of the conducting wire as shown in the figure above. Then,

Options

A. no current will be induced in the loop
B. the current induced in the loop will change its direction as the charged particle pases by
C. the current induced will be anticlockwise
D. the current induced will be clockwise

Answer

D

Explanation

Charge flowing in AB constitutes a current. According to right hand thumb rule, the magnetic field passing through the loop, due to current `i`, will be perpendicular to the plane of the page pointing upwards. the direction of current in the loop will be such as to oppose the increase of this field (Lenz law).