A bar magnet is held above the center of a wire loop lying in the horizontal pla

Question

A bar magnet is held above the center of a wire loop lying in the horizontal plane, as shown in the figure below. The south end of the magnet is toward the loop. After the magnet is dropped, what is true of the current in the resistor as viewed from above?

(a) It is always clockwise as the magnet falls through the loop.
(b) It is always counterclockwise as the magnet falls toward the loop.
(c) It is first clockwise as the magnet approaches the loop and counterclockwise after it has passed through the loop.
(d) It is first counterclockwise as the magnet approaches the loop and then clockwise after it has passed through the loop.

Explanation / Answer

When it is viewed from above the top of the loop, the magnetic field in the bar pass from south directed downwards hence the induces current in clockwise direction from right handed principle.

Therefore Option (a) is correct. The induced current always clockwise as the magnetic field pass through the loop.

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