Question

(1) What is the difference in potentials between two points, one at 10 cm, and the other at 20 cm distance
a charge of -5.5 C?
(it) Which point is at a higher potential ?​

Answer 1

The potential difference between two points ΔV is often called the voltage and is given by ΔV=VB−VA=ΔPEq Δ V = V B − V A = Δ PE q . The potential at an infinite distance is often taken to be zero. The case of the electric potential generated by a point charge is important because it is a case that is often encountered.