A copper wire with a cross-section area of 2 \times 10^{-6} m^2 has a free electron density equal to 5 \times 10^{22} \/cm^3. If this wire carries a current of 16A, the drift velocity of the electron is

KEAM 2017 Physics and Chemistry Paper

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A copper wire with a cross-section area of 2×10−6m2 has a free electron density equal to 5×1022∕cm3. If this wire carries a current of 16A, the drift velocity of the electron is

1 m/s
0.1 m/s
0.01 m/s
0.001 m/s
0.0001 m/s

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