Q. A charged particle is moving with velocity $v$ in a magnetic field of induction $B$. The force on the particle will be maximum when
A) $v$ and $B$ are in the same direction
B) $v$ and $B$ are in opposite directions
C) $v$ and $B$ are perpendicular
D) $v$ and $B$ are at an angle of $45{^\circ}$
Explanation
(c) Lorentz force $F = q(v \times B)$ or $|F| = qvB\sin\theta$
$F$ will be maximum when $\theta = 90{^\circ}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.