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(C) According to Lenz's Law,the induced current will flow in a direction such that it opposes the change in magnetic flux.In case $II$,the magnetic fi

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from $b$ to $a$ and from $f$ to $e$

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(C) According to Lenz's Law,the induced current will flow in a direction such that it opposes the change in magnetic flux.In case $II$,the magnetic field $B$ is directed into the plane (represented by $	imes$) and is decreasing.To oppose this decrease,the induced magnetic field must also be directed into the plane $(\otimes)$.By the right-hand thumb rule,for the outer loop $abgh$,the current must flow in a clockwise direction (from $a$ to $b$ and $b$ to $g$ and $g$ to $h$ and $h$ to $a$).For the inner loop $cdef$,the current must flow in a counter-clockwise direction to create an inward magnetic field (from $f$ to $e$ and $e$ to $d$ and $d$ to $c$ and $c$ to $f$).Therefore,the current flows from $b$ to $a$ in the outer loop and from $f$ to $e$ in the inner loop. Thus,option $C$ is correct.

The adjoining figure shows two different arrangements in which two square wire frames are placed in a uniform constantly decreasing magnetic field $B.$ The direction of induced current in the case $II$ is

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