The current in an electron beam in a cathode ray tube is 7.0 x 10^-5 a. a beam of electrons is aimed at a screen. how much charge hits the screen in 5.0s? a- 2.8x10^3 c b-5.6x10^-2 c c-3.5x10^-4 c d-5.3x10^-6 c

The current I is defined as the quantity of charge Q that flows in the tube in the unit of time t:

In our problem, we have  and the time is t=5.0 s. Therefore we  can find the charge that hits the screen during this time:

No bc a lot of things r still theories n unproven