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what is formula of drift velocity. From the formula of drift velocity the current is given as. V is the drift velocity of the electrons.
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1 A copper wire has a cross sectional area of 785 x 10-7 m 2. E represents the electric field. Where v is the drift velocity of the electrons.
The drift current density due to free electrons is given by.
µn mobility of electrons. E applied electric field. When we apply an electric field across the conductor the randomly moving electrons experience an electrical force in the direction of the field. This slow average drift speed for electrons is tiny compared to the average electron speed associated with its internal energy.
