An electron beam enters an electric field and is turned away by it. Diagram 1 shows an electric field lying in the plane of the paper. Diagram 2 shows an electric field acting at right angles to the plane of the paper. The lines A, B, C and D show possible routes for the electron beam. Every route lies in the plane of the paper. Which line most accurately shows the electrons’ path within the field?
Physics 9702 · AS & A Level · Equations of motion