Two protons are 3.6 nm apart.
Find the magnitude of the electric field (a) 4.8 nm and (b) 200 nm to the right of the right-hand proton in the figure above. (c) Show that your answer to (b) in nearly equal to the field of a single charge 2e located midway between the two protons.
(see attached diagram)
This solution finds the magnitude of an electric field.