An electron is initially at rest. It is accelerated through a potential difference of 400 V. What is the kinetic energy of this electron?

Question

Quizplus · Accepted Answer

The kinetic energy gained by an electron accelerated through a potential difference V is given by the equation KE = eV, where e is the charge of the electron (1.6 × 10^-19 C). Thus, KE = 1.6 × 10^-19 C × 400 V = 6.4 × 10^-17 J.

An Electron Is Initially at Rest