Question

A magnetic field can exert force on a

• A. stationary magnet
• B. moving charge
• C. moving magnet
• D. all of the above.

Answer 1

The correct option is D

all of the above.

Explanation for the correct answer:

1. A magnetic force is a type of force that acts on all the objects that produce a magnetic field around it,
2. Therefore, a magnetic force acts with a stationary magnet because a magnet always has a magnetic field around it.
3. A moving charge produces a magnetic field, thus, the magnetic force acts on the moving charge in the presence of the external magnetic field due to the interaction between the external magnetic field and the magnetic field produced by the moving charge.
4. A magnetic force acts also on a moving magnet because a magnet in motion also produces a magnetic field around it and thus experiences a magnetic force in the presence of the external magnetic field.
5. Hence, we can say that on a stationary magnet, a moving charge and moving magnet have a magnetic force that can act between them.

Therefore, option D is the correct answer.