# Blog & News

Magnetism

## Properties of magnetic force

(1) The magnitude of a magnetic force depends only on the magnitude of the charge i.e. $F\propto |q|$

(2)  Magnetic force is always perpendicular to the plane containing $\vec v$ and $\vec B$.

(3)  A charge moving parallel $\theta=0$ to a magnetic field experiences zero magnetic force.

(4)  A charge moving perpendicular $\theta =90{}^\circ$ to a magnetic field experiences a maximum magnetic force $F_B=qvB$.

(5)  The magnetic force on a positively charge particle is in opposite direction to that of a negatively charge particle i.e. $\vec F_{B(q)}=\vec F_{B(-q)}$