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What is the drift velocity of electrons in Silver wire of 2 mm radius, carrying a current of 4 A and having number of electrons per unit volume as $5.8 \times 10^{28} m^{- 3}$ .

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34.3 mms-1

34.3 μms-1

4.3 μms-1

4.3 mms-1

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detailed solution

Correct option is B

i = neAvd 4=5.8×1028×1.6×10-19×3.14×2×10-32×vdvd=34.3 μms-1

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What is the drift velocity of electrons in Silver wire of 2 mm radius, carrying a current of 4 A and having number of electrons per unit volume as 5.8×1028 m-3.

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What is the drift velocity of electrons in Silver wire of 2 mm radius, carrying a current of 4 A and having number of electrons per unit volume as $5.8 \times 10^{28} m^{- 3}$ .