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Question
Which physical quantity does the electron volt measure? How is it related to SI unit of this quantity?
Numerical
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Solution
The electron volt (eV) is a unit of energy.
Its SI unit is joule (J).
1 eV = 1.6 × 10−19 J
An electron volt is the energy gained by an electron when it moves through a potential difference of 1 volt.
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Chapter 1: Force, Work, Energy and Power - Frequently Asked Questions in Board Examination [Page 78]
