Setting electric potential to zero can be done at infinity or at the origin, depending on the problem's context. Generally, infinity is a common choice, but it may not apply if dealing with infinitely large charged objects, as their potential does not diminish at great distances. The zero potential is an arbitrary choice made during integration of the electric field, allowing for flexibility in calculations. In cases like an infinite charged plane, the concept of infinity becomes irrelevant, and the potential can be defined as zero at the plate itself. Ultimately, the choice of reference point for zero potential is determined by convenience and the specific charge configuration involved.
