Electron volt is a unit of energy.
Can also be use as work
Use to measure small energy and work
Defination of 1ev?
1 ev is the amount of kinetic energy gained or lost by a single electron accelerating from rest through an electric potential difference of 1 volt in vaccum.
Relation between ev and joule:
1 ev = 1 volt x charge of one Electron = 1volt x 1.602x10^-19 coulombs
So, 1 ev = 1.602 x 10^-19 joule
The numerical value of 1 ev in joule is equivalent to the numerical value of the charge of an electron in coulomb's.
Similarly, 1 joule = 6.242 x 10^18 ev
Some bigger unit is Mev
1Mev = 10^6 ev
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