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electron volt Syllabification: e·lec·tron volt
(abbreviation: eV)

Definition of electron volt in English:


A unit of energy equal to the work done on an electron in accelerating it through a potential difference of one volt.
Example sentences
  • Its decay produces gamma rays with energies of a trillion electronvolts.
  • At today's accelerators, for example the CERN LEP accelerator, the value has been measured as 1/128 rather than 1/137 at energies corresponding to approximately 100 billion electronvolts.
  • It means that the energy of the source is of the order of a teraelectronvolt, that is, a trillion electronvolts.
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