Question

What is the physical quantity that an electron volt measures?

Answer 1

Electron volt:

1. The electron volt (eV) is used to measure energy, threshold energy, or work function.
2. The joule is the SI unit of energy (J).
3. The electron volt is equal to $1.602\times {10}^{-19}\text{J}$.
4. The amount of kinetic energy raised by an electron as it flows or passes is measured in electron volts.