Question

Solve this question​

Answer 1

Hi mate your answer is here:

given: e = 1.6 × 10^-19C

i = 2 A

t = 1 sec

t has been taken 1 sec bcz ..we have to find no of electron per second

as we know,

q = it = 2 × 1 = 2 C

no of electron = q/e = 2/1.6 × 10^-19

= 1.25 × 10^19

HOPE THIS HELPS YOU

Answer 2

Current is the amount of charge passing through a conductor in a particular interval of time.

So according to the definition, the formula for the current is:

I = Q/t

I = 2 A and t = 1 sec

Therefore,

Q = I×t

Q = 2×1 = 2 C

One electon consists of a charge of 1.6×10^-19 C. Then the number of electrons passing would be:

Q = n×e

n = Q/e

n = 2/(1.6×10^-19) = 1.25×10^19

electrons