. Electron Volt is a unit of
A: Potential difference
Electron volt generally represented by the symbol ev. Electron volt is defined as a unit of energy which is equal to 1.602×10-19 joule. The SI unit of Electron volt is Joule.
Electron volt is defined as the amount of energy gained when a single electron's charge is transported over a one-volt electric potential difference.
Option B is the correct answer. Electron Volt is a unit of energy.