Electrons in an x-ray machine are accelerated from rest through a potential difference of 80,000 V.What is the kinetic energy of each of these electrons in eV?
A) 128 eV
B) 40 eV
C) 80 eV
D) 80 keV

Question

Quizplus · Accepted Answer

The kinetic energy gained by an electron accelerated through a potential difference of 80,000 V is equal to the charge of the electron (1 e) multiplied by the potential difference (80,000 V), which is 80,000 eV or 80 keV.

Electrons in an X-Ray Machine Are Accelerated from Rest Through