Electric Field and Potential Scenario

[JoeManSho]

Homework Statement

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?

Homework Equations

W=-ΔU=-ΔVq
ΔV=-∫Edr
V=kQ/r (with reference r->∞)

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!

 

[cnh1995]

I've been stuck on trying to think of a scenario where both are zero.

How about at infinity?