An electron in a cathode ray tube is accelerated through a potential difference of 10 kV.What kinetic energy does the electron gain in the process? (e = 1.6 × 10−¹⁹ C) A) 8.0 × 10−¹⁶ J B) 1.6 × 10−¹⁵ J C) 8.0 × 10²² J D) 1.6 × 10−¹⁶ J

Question

Quizplus · Accepted Answer

The kinetic energy gained by the electron is equal to the charge of the electron multiplied by the potential difference: KE = eV = (1.6 × 10^-19 C)(10,000 V) = 1.6 × 10^-15 J.

An Electron in a Cathode Ray Tube Is Accelerated Through