The electric current flowing in a wire in the direction from B to A is decreasing. Find out the direction of the induced current in the metallic loop kept above the wire as shown.

Clockwise. According to the right-hand thumb rule, the magnetic field passing through the loop, due to current i, will be perpendicular to the plane of the paper pointing downwards. The direction of the current in the loop will be such as to oppose the decrease of this field. Since the current i is decreasing, the magnetic field is also decreasing. To oppose this decrease, the induced current in the loop will produce a magnetic field in the same direction (downwards). Using the right-hand thumb rule again, this requires a clockwise current in the loop.