Question

A particle of mass m and charge $q$ is fired perpendicular to a uniform magnetic field of induction $B$. While the particle moves in a circular path in the field, its angular velocity is

• A. $\frac{m}{Bq}$
• B. $\frac{Bm}{q}$
• C. $\frac{Bq}{m}$
• D. $\frac{q}{Bm}$

Answer 1

The correct option is C $\frac{Bq}{m}$

$\because r=\frac{mv}{qB}$
$\frac{v}{r}=\frac{qB}{m}$
$w=\frac{qB}{m}$