1. The problem statement, all variables and given/known data A -2.0 nC charge and a +2.0 nC charge are located on the x-axis at x= -1.0 cm and x = 1.0 cm, respectively. At what position or positions on the x-axis is the electric potential 0? 2. Relevant equations V = kq/r 3. The attempt at a solution I'm having difficulty getting this one started. Can anyone help me out with this one please?