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Drift Velocity of Electron

Is there any ...

Question

Is there any relation between EMF of a battery and drift speed of electrons in the conductor connected to a battery?

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Solution

The drift velocity of electrons is directly proportional to the potential difference applied across the conductor.

Drift velocity v_d = V/(ρlne),

where V is the potential difference, ρ the specific resistance, l the length of the conductor, n the number of electrons per unit volume of the conductor and e the electronic charge.

(Emf is the p.d. when the cell is not supplying any current.)

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