Question

Identify the condition in which charged particle will experience the maximum force:

• A. when traveling perpendicular to the magnetic field.
• B. when traveling parallel to the magnetic field.
• C. when traveling opposite to the magnetic field.
• D. when traveling neither parallel nor perpendicular to the magnetic field.
• E. when the relative motion is at a maximum.

Answer 1

The correct option is A when traveling perpendicular to the magnetic field.

Magnetic force $F_m=qvB$ $sin\theta$ where $\theta$ is the angle between $v$ and $B$.

For magnetic force to be maximum, $sin\theta =1$ $⟹\theta ={90}^o$

Thus the charge traveling perpendicular to the magnetic field experiences the maximum force.