A particle carrying charge moves due south with speed in a region where a uniform…

PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A particle carrying charge

+q

moves due south with speed

3.0\times10^{6}\,\text{m s}^{-1}

in a region where a uniform magnetic field of

0.25\,\text{T}

is directed vertically downward. (a) State the direction of the magnetic force on the particle. (b) If the particle had charge

-q

(same magnitude and velocity), what would be the direction of the magnetic force?