High Quality Content by WIKIPEDIA articles! In physics, the electron volt (symbol eV; also written electronvolt) is a unit of energy equal to approximately 1.602?10?19joule (symbol J). By definition, it is equal to the amount of kinetic energy gained by a single unbound electron when it accelerates through an electric potential difference of one volt. Thus it is 1 volt (1 joule per coulomb, 1 J/C) multiplied by the electron charge (1 e, or 1.602176565(35)?10?19 C). Therefore, one electron volt is equal to 1.602176565(35)?10?19 J. Historically, the electron volt was devised as a standard unit of measure through its usefulness in electrostatic particle accelerator sciences because a particle with charge q has an energy E=qV after passing through the potential V; if q is quoted in integer units of the elementary charge and the terminal bias in volts, one gets an energy in eV. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом,...

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