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electron volt
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Definition/Summary
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A joule ([itex]1\ J[/itex]) is a coulomb volt, and is the S.I. unit of energy.
It is the the energy difference when you move something with one coulomb ([itex]1\ C[/itex]) of charge through an electric potential difference of one volt ([itex]1\ V[/itex]).
An electron volt ([itex]1\ eV[/itex]) is the energy difference when you move something with the charge of an electron through one volt. |
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Equations
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Charge of an electron:
[tex]1.60217653(14) × 10^{-19}\ C[/tex]
and so:
[tex]1\ eV\ =\ 1.60217653(14) \times 10^{-19}\text{ coulomb volts}[/tex]
[tex]=\ 1.60217653(14) \times 10^{-19}\ J[/tex] |
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Recent forum threads on electron volt
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Breakdown
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Physics
> Electromagnetism
>> Physical Quantities & Units
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Commentary
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