A particle of charge enters a region where a uniform electric field of points due…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A particle of charge

+2.0\times10^{-19}\,\text{C}

enters a region where a uniform electric field of

3.0\times10^{3}\,\text{N}\!\cdot\!\text{C}^{-1}

points due east and a uniform magnetic field of

0.020\,\text{T}

points due north. The particle’s velocity is

2.0\times10^{5}\,\text{m}\!\cdot\!\text{s}^{-1}

due east. (a) Calculate the magnitude of the net force acting on the particle. (b) State the angle between the net force and the electric force.