Free electron number density in one wire...

Free electron number density in one wire is n, its area of cross-section is A, and drift velocit of electrons is `v_(d)` Then electric current forme in this wire is ......

`"ne"v_(d)`

`Av_(d)`ne

Ane

`(Av_(d) n)/(e)`

Text Solution

Verified by Experts

The correct Answer is:

`Av_(d)`ne
We have J = `(I)/(A) = "nev"_(d)`
`therefore I = Av_(d) ` ne

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