A) \[{{10}^{-19}}J\]
B) \[1.6\times {{10}^{-19}}erg\]
C) \[1.6\times {{10}^{-19}}J\]
D) \[1J\]
Correct Answer: C
Solution :
Work required to move one electron (e) through a potential difference of 1 V, gives the unit of energy abbreviate as eV. That is, Energy = eV Given, \[e=1.6\times {{10}^{-19}}C,V=1V\] \[\therefore \]Energy \[=1.6\times {{10}^{-19}}\times 1=1.6\times {{10}^{-19}}J\] Note: A volt is not a measure of energy, while an electron volt is a measure of energy.
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