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PHYSICS

JAMB 2019 - Question 29

Physics 2019 JAMB Past Questions - Question 29: The magnetic force on a charged particle moving with velocity is

Choose the correct answers from the options given.

The magnetic force on a charged particle moving with velocity is

A: proportional to velocity v only

B: independent of the magnitude of the charge

C: proportional to both the magnitude of the charge and velocity v

D: proportional to the magnitude of the charge only

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Correct Answer

Explanation

The magnetic force on a charged particle moving with velocity is given by the formula:

\[ \vec{F} = q(\vec{v} \times \vec{B}) \]

Where:
- \(\vec{F}\) is the magnetic force
- \(q\) is the charge of the particle
- \(\vec{v}\) is the velocity of the particle
- \(\vec{B}\) is the magnetic field

This formula represents the cross product of the velocity and the magnetic field, resulting in a force perpendicular to both the velocity and the magnetic field.