Animate
An electron is accelerated from rest under the influence of a potential V1. At the origin, the electron enters crossed electric and magnetic fields. The electric field is oriented in the -y direction and is produced by parallel plates with a potential difference equal to V1. The magnetic field is oriented in the -z direction (into screen) and is produced by Helmholtz coils with current.
Vectors: red = velocity green = magnetic force black = electric force
blue = acceleration