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Question
What is the value of \[1\,\mathrm{eV}\] in joules?
Options
\[10^{8}\,\mathrm{J}\]
\[1.602\times10^{-19}\,\mathrm{J}\]
\[1\,\mathrm{J}\]
\[1.602\times10^{19}\,\mathrm{J}\]
MCQ
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Solution
The conversion is \[1\,\mathrm{eV}=1.602\times10^{-19}\,\mathrm{J}\]. An electron volt is therefore a very small amount of energy in joules.
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