The Current in an Electron Beam in a Cathode-Ray Tube

Multiple Choice

The current in an electron beam in a cathode-ray tube is measured to be 70 µA.How many electrons hit the screen in 5.0 s? (e = 1.6 x 10^-19 C)

A) 2.2 x 10¹¹ electrons
B) 8.8 x 10¹³ electrons
C) 2.2 x 10¹⁵ electrons
D) 8.8 x 10¹⁸ electrons