Question

The energy acquired by a charge of $8\times {10}^{-19}C$ when passed through a potential difference of $200volt$

• A. $500eV$
• B. $1000eV$
• C. $1500eV$
• D. $2000eV$

Answer 1

The correct option is B $1000eV$

$\begin{array}{c}U=qV\\ =8\times {10}^{-19}\times 200J\\ =\frac{8\times {10}^{-19}\times 200}{1.6\times {10}^{-19}}eV\\ =1000ev\\ Hence,theoptionBisthecorrectanswer.\end{array}$