1. The problem statement, all variables and given/known data I got an answer as you can see in both pictures, but apparently it is wrong. What did I do? 2. Relevant equations 3. The attempt at a solution In this picture I found the y components of the electric field at C. Since the bottom 2 are the same i just doubled one of the electric fields. I then set it equal to the electric field from the top to cancel out the effect from the bottom.