If the electronic charge is `1.6xx10^(-19)C`, then the number of electrons passing through a section of wire per second, when the wire carries a current of 1A, is

Options

A. `0.625xx10^(19)`
B. `0.625xx10^(17)`
C. `1.6xx10^(19)`
D. `1.6xx10^(17)`

Answer

A

Explanation

`n=? " " I=1A, " " t=1` sec
`I=(n e)/(t)`
`:.n=(It)/(e)=(1xx1)/(1.6xx10^(-19))=0.625xx10^(19)`