In the diagram, the shaded region shows a uniform electric field pointing away from the observer (at right-angles into the plane of the paper). A horizontal beam of electrons enters the field and travels from left to right. By the field, in which direction is this beam deflected?
- Aupwards (in the plane of the paper)
- Bdownwards (in the plane of the paper)
- Caway from the observer
- Dtowards the observer