The energy which an electron acquires when accelerated, through a potential difference of $1$ volt is called

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Joule

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erg

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watt

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Solution

The correct option is D $1$ eV
The energy which an electron acquires when accelerated, through a potential difference of 1 volt is called 1 eV. It is a unit of energy. It is usually used as a measure of particle energies although it is not an SI (System International) unit. The SI unit for energy is the Joule. $1 e V = 1.602 \times 10^{- 19} J o u l e s$

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