About this Simulation

This simulation models a Wien (E×B) filter, a device that uses crossed electric and magnetic fields to select particles based on velocity. Learners can adjust field strengths and particle properties to observe how the Lorentz force determines particle trajectories and understand the conditions for particles to pass straight through.

Learning objectives: Understand how electric and magnetic forces combine in crossed-field geometries | Predict particle motion using the Lorentz force equation | Determine velocity-selection conditions in Wien filters