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Q:
How many electron volts are in a volt?
- Anthony (age 11)
Ellicott City, MD USA
A:
A Volt is a unit of electric potential. One AAA battery has a potential of about 1.5 Volts.
An electron-volt is a unit of energy. It is the amount of energy that a particle with one electron's amount of charge will collect when it is accelerated through a potential difference of one Volt. It's an extremely small amount of energy, 1 eV = 1.602 x 10
-19 Joules.
You can get some more information at
http://en.wikipedia.org/wiki/ElectronvoltLeeH
(published on 04/08/2008)
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