Electrostatic potential energy

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Question

An electron (charge $= 1.6 \times 10^{- 19}$ coulomb) is accelerated through a potential of 1,00,000 V. The energy required by the electron is___ $\times 10^{- 14} J$ .

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Solution

$W = q V = 1.6 \times 10^{- 19} \times 100000 = 1.6 \times 10^{- 14} J$

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