Answer to Question #31252 in Electric Circuits for Aaron Okievs.

Question

The electron beam in a television tube consists of electrons accelerated from rest through a potential difference of about 20,000V. What is the speed of the electrons? (Ignore relativistic effects). Electron rest mass is 9.11×10^−31 kg and electronic charge is 1.6×10^−19 C.

a. 8.4×107 m/s

b. 3.8×106 m/s

c. 6×106 m/s

d. 4.7×107 m/s