Which of the follwing characteristies of electrons determines the current in a conductor?

Options

A. Drift velocity along
B. Thermal velocity alone
C. Both drift velocity and tehrmal velocity
D. Neither drift nor thermal velocity.

Answer

A

Explanation

The relationship between current and drift speed is given by
`I=n e" "Av_(d)`
Here, I is the current and `v_(d)` is the drift velocity
So, `I propv_(d)`
Thus, only drift velocity determines the current in a conductor.