Solve the problem in Example 3.5b but with the positive charge twice as large as the negative charge.
EXAMPLE 3.5
An electron is located at a point in space.
(a) Calculate the electric field intensity everywhere in space. The charge of the electron is e.
(b) Find the force the electron exerts on a dust particle, charged with a total charge of 3.2 x 10-19 C (two protons) and located at a distance R from the electron.