Question

In a particular TV tube a beam of electron is emitted. The beam current is 80µa . How many electrons strike the screen of tv every second. Also find the total charge striking the screen in 2 minutes.​

Answer 1

Answer:

n = It/e = 8 x 10^-5 x 1 divided by 1.6 x 10^-19 = 5 x 10^14 electrons strike the screen every second.

Explanation:

I = 80 micro Ampere = 8 x 10^-5

t = 1 sec.

I = Q/t = ne/t

n = It/e = 8 x 10^-5 x 1 divided by 1.6 x 10^-19    = 5 x 10^14  electrons strike the screen every second.

Also, I = Q/ t

 Q = It  = 8 x 10^-5 x 2 x 60

 = 960 x 10-5 C = 9.6 x 10^-3 C

PLEASE PLEASE MARK ME AS BRAINLIEST....