The figure shows certain wire segments joined together to form a coplaner loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time `I_(1) and I_(2)` are the currents in the segments ab and cd. Then,

Options

A. `I_(1) gt I_(2)`
B. `I_(1) lt I_(2)`
C. `I_(1)` is in the direction ba and `I_(2)` is in the direction cd
D. `I_(1)` is in the direction ab and `I_(2)` is in the direction dc

Answer

D

Explanation

Cross `ox` magnetic field passing from the closed loop is increasing. Therefore, from Lenz's law, induced current will produce dot `o.` magnetic field. Hence, induced current is anti-clockwise.
In that case, k = 1(unity)