Cathode-ray tubes (CRTs) are often found in oscilloscopes and computer monitors.
d) At what angle with the axis is it moving as it leaves the plates?
♦ Relevant knowledge
If you consider that two plates are that are separated via a space, and the plates are charged in opposite directions there is a possible differences among the two plates. In this situation the electric field will be continuous and uniform. Therefore when you have a certain potential difference the electric field will be dependent on how far the plate is. The less distance between the plates is, the higher the intensity of the field. The electric field produces a force related to the size of the charge that is imposed on the plates.