Lenz’s law states that:-
"The direction of induced current is always such as to oppose the cause which produces it".
Consider a bar magnet and a coil of wire.
When the N-pole of magnet is approaching the face of the coil, it becomes a north face by the induction of current in anticlockwise direction to oppose forward motion of the magnet.
When the N-pole of the magnet is receding the face of the coil becomes a south pole due to a clockwise induced current to oppose the backward motion.
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