The work done by an electric field is the force exerted on a charged particle multiplied by the distance the particle moves in the direction of the electric field. This is known as the electric potential energy.
The amount of work done by an electric field on a proton is determined by the strength of the electric field and the distance the proton moves in the direction of the field.
No, the work done by an electric field on a proton can be either positive or negative depending on the direction of the electric field and the direction of the proton's movement.
The work done by an electric field on a proton can be calculated using the formula W = qEd, where q is the charge of the proton, E is the strength of the electric field, and d is the distance the proton moves in the direction of the field.
The unit of work done by an electric field on a proton is joules (J). This is because work is a measure of energy, and the SI unit for energy is joules.