Question

in a particular television a beam of electron in emitted. the beam current is 80 uA. how many electrons strike screen of television every second. also find charge striking the screen in 2 min

Answer 1

The charge striking the screen in 2 minute is 2 * 60 * 80uC.<br /><br />The number of electrons striking the electrons per second is nearly 5 * 10^14

Answer 2

Explanation:

I = 8 × 10^-6

e = -1.6 ×10^-19 C

T = 1 sec

I = ne/t

n = IT/t

n = 8× 10^-6×1/-1.6×10^-19

n = 5 × 10^13

Charge of electron while striking in the screen in 2 min

Q = ?

T = 2 min = 120 sec

I = 8 × 10^-6

I = Q/ T

Q = IT

Q = 8 × 10^-6 × 120

Q = 9.6 × 10^-3

Hope it helps you