The speed of an electron in an electric field depends on the strength of the electric field and the mass of the electron. It can range from very slow speeds to nearly the speed of light.
An electric field exerts a force on an electron, causing it to accelerate. The speed of the electron increases as it accelerates in the direction of the electric field.
No, according to Einstein's theory of relativity, nothing with mass can travel at the speed of light or faster. Therefore, the speed of an electron in an electric field cannot exceed the speed of light.
No, the speed of an electron in an electric field is not constant. It can change depending on the strength of the electric field and the electron's mass. Additionally, as the electron approaches the speed of light, its speed will become increasingly difficult to change.
The speed of an electron in an electric field is typically measured using an instrument called a cathode ray tube. This device uses an electric field to accelerate electrons, and the speed of the electrons can be calculated by measuring the distance they travel and the time it takes to reach a certain point.