in a particular television tube, a beam of electrons is emitted. the beam current is 80 microAmpere. how many electron strike the screen of tv every second? also find the total charge striking thescreen in 2 min. - CBSE board question
Answers
Answered by
15
I = q/t
q = ne
for no. electron per sec
ne = I = 80 × 10^-6
n = 80 x 10^-6 ÷(1.6x10^-19)
= 50x10^13 (is the number of electrons that strike the screen per second)
in two minute
q = It
= 120x80x10^-6
= 9.6x10^-3 coulomb
Answered by
3
Answer:
Explanation:
I = q/t
q = ne
for no. electron per sec
ne = I = 80 × 10^-6
n = 80 x 10^-6 ÷(1.6x10^-19)
= 50x10^13 (is the number of electrons that strike the screen per second)
in two minute
q = It
= 120x80x10^-6
= 9.6x10^-3 coulomb
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