Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

An electric potential $($also called the electric field potential or the electrostatic potential$)$ is the amount of electric potential energy that a unitary point electric charge would have if located at any point of space, and is equal to the work done by an electric field in carrying a unit positive charge from infinity to that point.
This value can be calculated in either a static $($time$-$invariant$)$ or a dynamic $($varying with time$)$ electric field at a specific time in units of joules per coulomb, or volts $(V).$ The electric potential at infinity is assumed to be zero.