Electronvolt is a unit used in energy and power conversions and practical measurement work.
The electronvolt is the energy an electron gains when it crosses a potential difference of one volt, about 1.602 × 10⁻¹⁹ joules. It is the everyday unit of atomic, nuclear and particle physics.
Measurement system: SI, practical energy and power-measurement usage. SI equivalent: 1 eV = 1.602177e-19 J.
Electronvolt facts
- Unit name
- Electronvolt
- Symbol
- eV
- Category
- Energy and Power
- Measurement system
- SI, practical energy and power-measurement usage
- SI equivalent
- 1 eV = 1.602177e-19 J
- Common uses
- Heating, electricity, nutrition, fuel and engineering
Definition of the electronvolt
Electronvolt is a unit used in energy and power conversions and practical measurement work.
Measurement system and SI relationship
SI, practical energy and power-measurement usage
SI equivalent: 1 eV = 1.602177e-19 J
History of the electronvolt
The electronvolt is the energy an electron gains when it crosses a potential difference of one volt, about 1.602 × 10⁻¹⁹ joules. It is the everyday unit of atomic, nuclear and particle physics.
Where is the electronvolt used?
Heating, electricity, nutrition, fuel and engineering