GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What will cause a decrease in the forces of attraction between two magnets?
A
Increase the size of the two magnets
B
Change the color of the two magnets
C
Change the shape of the two magnets
D
Increase the distance between the two magnets
Explanation: 

Detailed explanation-1: -Magnetic field due to a magnet decreases with increase in distance and hence, magnetic force between two magnets decreases with increase in distance.

Detailed explanation-2: -The closer the two magnets are together, the stronger the force between them. So, as the distance decreases, the force increases, but the farther away they are, the weaker the magnetic force is. So, distance increases; force decreases.

Detailed explanation-3: -What happens to the force of attraction between two magnets as the distance between them changes? The force of attraction decreases as the magnets get farther apart.

Detailed explanation-4: -Magnetic Fields Varying as an Inverse Cube For both monopoles and dipoles, the field strength decreases as the distance from the source increases., often called the inverse square law.

Detailed explanation-5: -Every magnet produces a magnetic field that is stronger near its poles. If opposite poles of two separate magnets are facing each other, each of the magnets is drawn into the stronger magnetic field near the pole of the other. If like poles are facing each other though, they are repulsed from the larger magnetic field.

There is 1 question to complete.