Question

A current of 10A exists in a conductor Assuming that this current is entirely due to the
now of electrons (a) find the number of electrons crossing the area of cross section per
second, (b) if such a current is maintained for one hour find the net flow of charge​

Answer 1

Answer:

I = 10 A

t =1 h = 60 x 60 = 3600 s

 I = Q/t

Thus,  

Q = I x t  

Q = 10 x 3600 = 36000 C  

 Thus, no. of electrons crossing area of cross section per second is  

Q = ne  

n = Q/e = 36000/(1.6 x 10-19) = 22.5 x 1022

Explanation:

Hope it helps