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Q & A: Electrons and electron-Volts.

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Most recent answer: 04/08/2008
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.
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LeeH

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(published on 04/08/2008)

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