Question

a circular aluminum loop lies flat on a horizontal surface. a bar magnet is held above the center of the loop with its north pole pointing down. if the magnet is moved closer to the loop from this position, what is the direction of the induced current in the coil, as viewed from above as the magnet is moving?

Answer 1

As the north pole of a magnet moves closer to an aluminum loop, a counterclockwise current is induced when viewed from above, according to Lenz's law.

Step-by-step explanation:

When a bar magnet with the north pole pointing down is moved closer to a circular aluminum loop that lies flat on a horizontal surface, an induced current is generated in the loop. According to Lenz's law, the direction of the induced current in the loop will be such that it creates a magnetic field to oppose the change in flux caused by the approaching magnet. Hence, when viewed from above, as the north pole of the magnet moves closer to the loop, a counterclockwise current is induced in the loop to oppose the increasing magnetic flux entering the loop.