Question

What is formula for Potential Difference?​

Answer 1

Answer:

The potential difference between points A and B, VB − VA, defined to be the change in potential energy of a charge q moved from A to B, is equal to the change in potential energy divided by the charge, Potential difference is commonly called voltage, represented by the symbol ΔV: ΔV=ΔPEq Δ V = Δ PE q and ΔPE = qΔV.

Answer 2

$\Huge\sf\mathbb\color{b}\underline{\colorbox{blue}{Answer}}$

charge placed in an electric field possesses potential energy and is measured by the work done in moving the charge from infinity to that point against the electric field. If two charges q1 and q2 are separated by a distance d, the electric potential energy of the system is;

U = 1/(4πεo) × [q1q2/d]

If two like charges (two protons or two electrons) are brought towards each other, the potential energy of the system increases. If two unlike charges i.e. a proton and an electron are brought towards each other, the electric potential energy of the system decreases.