1. There is an electric field with two plates, one positive one negative, having a distance of 4.5x10-3 metres apart producing a charge of 200N/C. How long would it take a free moving proton to travel from the positive plate to the negatively charged plate? 2. ? 3. I solved for voltage, coulombs, newtons, joules.. I just can't think of an equation for getting time. There are several for power, I just need either amperes, or ohms. thanks!