1. The problem statement, all variables and given/known data I was wondering in what situation would the potential and the electric field of the system both be equal to zero at the same time? 2. Relevant equations W=-ΔU=-ΔVq ΔV=-∫Edr V=kQ/r (with reference r->∞) 3. The attempt at a solution I know for the middle of a dipole the potential is zero while the electric field is non-zero. Then for the middle of two identical charges the electric field is zero while the potential is non-zero. I've been stuck on trying to think of a scenario where both are zero. Thanks!