EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The force between two magnets decreases when ____
A
two like poles come closer together.
B
two unlike poles come closer together.
C
the distance between them increases.
D
the distance between them decreases
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: -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-3: -Answer and Explanation: As the distance between an object and a magnet increases, the strength of the magnetic field decreases.

Detailed explanation-4: -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.

Detailed explanation-5: -Magnetic force obeys an inverse square law with distance. The equation for magnetic force is similar to Coulomb’s Law (if you are familiar with it). But the key point is that the force is inversely proportional to the distance squared (i.e. it obeys an inverse square law with distance).

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