A copper wire of a diameter of 1.02 mm carries a current of 1.7 amp. The drift velocity (vd) of electrons in the wire is (The number density of electrons in copper = 8.5×10^28 m^3.) - Padhle.Online
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A copper wire of a diameter of 1.02 mm carries a current of 1.7 amp. The drift velocity (vd) of electrons in the wire is (The number density of electrons in copper = 8.5×10^28 m^3.)

 The drift velocity (vd) of electrons in the wire is

(a) 1.25 mm/sec
(b) 1.75 mm/sec
(c) 1.5 mm/sec
(d) 2.5 mm/sec

Answer: (c) 1.5 mm/sec

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