Two bar magnets are to be cut in half along the dotted lines shown. None of the pieces are rotated. After the cut:

Question

Two bar magnets are to be cut in half along the dotted lines shown. of the pieces are rotated. After the cut:

(A) of the halves will attract any other

(B) The two halves of each magnet will attract each other

(C) The two halves of each magnet will repel each other

(D) The two halves of the top magnet will repel, the two halves of the bottom magnet will attract

(E) The two halves of the top magnet will attract, the two halves of the bottom magnet will repel

Answer 1

The correct option is: (E) The two halves of the top magnet will attract, the two halves of the bottom magnet will repel

Explanation:

When cutting a magnet, you must end up with two new magnets having 2 poles each. For the top magnet the current N and must stay as is, so the left of center part becomes a and the right of center part becomes a N. There are now two opposite poles that attract. For the bottom magnet, by slicing it down the center you now have two magnets on top of each other. The poles would not change their current locations so you have two north and two south poles near each other on top and bottom which makes repulsion.