Question

The kinetic energy of an electron accelerated from rest through a potential difference of 5 V will be:

• A. $5J$
• B. $5erg$
• C. $5eV$
• D. $8\times {10}^{-19}eV$
• E. $80eV$

Answer 1

Answer: (C)

$KE=eV=1.6\times {10}^{-19}\times 5V=5eV$