Force Between Magnets with Material · CAP 2024 #18
Physics · electromagnetism
Problem
Two permanent magnets A and B are held at a fixed distance apart. A material M is placed between the magnets, where M is either a block of aluminum or a block of rubber. M does not touch the magnets. What happens to the magnitude of the electromagnetic force on magnet A as a result of the presence of the material?
A. Decreases substantially for both materials.
B. Increases substantially for both materials.
C. Remains approximately the same for both materials.
D. Increases for one material, decreases for the other.
E. Increases for one material, remains same for the other.
F. Decreases for one material, remains same for the other.