1. The problem statement, all variables and given/known data Two pairs of charges are shown in Figure 1. 2. Relevant equations 3. The attempt at a solution I originally thought that the electric field past point 7 (i.e. points 8,9, 10) was the solution. However, this is wrong. I then considered point 1, yet that was wrong too. I even considered that there was no point at which the electric field is zero. However, none of these guesses seem to be right. Where am I going wrong in my thinking?