# Definition of electron volt or EV

**The concept of Electron volt is very simple. Let’s start with very simple. We know that the unit of power is the watt. W = VI, where V is the voltage and I is the current. **

**Now that I’m up to date, it’s nothing but a fee transfer. Therefore, an immediate impression of power would be**

**Where q (t) is the amount of charge transferred in time t. Now energy is being expressed in**

**Where q is the charge in Coulomb crossing a voltage V volts. From the expression of energy, we can write the required energy or work**

**to** **cross an electric field of total voltage V through a load Q Coulomb, QV Coulomb – Volts, or Joules. **

**We now know that the charge of an electron is **– **1.6 × 10 ^{-19}**

**Coulomb,**

**and assume that it has undergone an electric field with a total voltage of 1 V electron × 1 V.**

**This amount of energy is called the micro-unit of energy, which is called the electron volt.**

## Definition of an electron volt

**An electron volt is the energy unit in joules that corresponds to the**

** amount of work required to bring an electron into a 1-volt electrical difference field.**

**It is a very small or small energy unit that is mainly used for various**

** calculations at the atomic and electronic level. **

**The concept of energy levels in materials is treated in this micro-unit of electron-volts energy.**

** This device not only uses the energy of the electrons but also all kinds **

**of energy like heat energy, light, etc.**