Lenz's law: The figure shows a bar magnet moving vertically upward toward a horizontal coil. The poles of the bar magnets are labeled X and Y. As the bar magnet approaches the coil it induces an electric current in the direction indicated on the figure (counter-clockwise as viewed from above). What are the correct polarities of the magnet?
A) X is a south pole, Y is a north pole.
B) X is a north pole, Y is a south pole.
C) Both X and Y are north poles.
D) Both X and Y are south poles.
E) The polarities of the magnet cannot be determined from the information given.

Question

Lenz's law: The figure shows a bar magnet moving vertically upward toward a horizontal coil. The poles of the bar magnets are labeled X and Y. As the bar magnet approaches the coil it induces an electric current in the direction indicated on the figure (counter-clockwise as viewed from above). What are the correct polarities of the magnet? 
A) X is a south pole, Y is a north pole. 
B) X is a north pole, Y is a south pole. 
C) Both X and Y are north poles. 
D) Both X and Y are south poles. 
E) The polarities of the magnet cannot be determined from the information given.

Quizplus · Accepted Answer

The Answer of Lenz's law: The figure shows a bar magnet moving vertically upward toward a horizontal coil. The poles of the bar magnets are labeled X and Y. As the bar magnet approaches the coil it induces an electric current in the direction indicated on the figure (counter-clockwise as viewed from above). What are the correct polarities of the magnet? 
A) X is a south pole, Y is a north pole. 
B) X is a north pole, Y is a south pole. 
C) Both X and Y are north poles. 
D) Both X and Y are south poles. 
E) The polarities of the magnet cannot be determined from the information given.

Lenz's Law: the Figure Shows a Bar Magnet Moving Vertically