A charged particle is projected at an angle into a uniform magnetic field. Which of the following parameters of the charged particle will be affected by the magnetic field?
Correct answer: C. Velocity
- A. Energy
- B. Speed
- C. Velocity
- D. Kinetic Energy
Explanation
The magnetic force is always perpendicular to the particle's velocity. This force changes the direction of the velocity vector but does no work on the particle. Therefore, while the direction of motion (and thus velocity) changes, the speed and kinetic energy remain constant.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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