1. The problem statement, all variables and given/known data If you bring 2 charges, Q_1 (=+6 micro Coulombs) and Q_2 (= -2 micro Coulombs), from infinity to positions on the x axis of x = -4 cm and 4 cm, respectively, is it possible to bring a 3rd charge Q_3 ( = +3 micro Coulombs) from infinity to a point on the x axis between the charges where the potential is 0? If it is possible, where would this be on the x axis? a) It is not possible. b) x = 0 cm c) x = +2 cm d) x = +6 cm e) x = +1.5 cm 2. Relevant equations V = kq/r 3. The attempt at a solution Is it asking to find the null V point btwn the 2 charges (regardless of the 3rd charge)? Or the 3-point null?