Question

Which of the follwing characteristies of electrons determines the current in a conductor?
A. drift velocity alone
B. thermal velocity alone
C. both drift velocity and thermal velocity
D. neither drift nor thermal velocity

Answer 1

The relationship between current and drift speed is given by
`I=n eAv_(d)`
Here `I` is the curret and `v_(d)` is the drift velocity. So, `IpropV_(d)` Thus, only drift velocity determines the current conductor.