1.

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

Answer»

`0.625xx10^(19)`
`0.625xx10^(17)`
`1.6xx10^(19)`
`1.6xx10^(17)`

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


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