When 5V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons is 2.5 \times 10^{–4} ms^{–1}.If the electron density in the wire is 8 \times 10^28 m^{–3},the resistivity of the material is close to [Main 2015]

Correct Answer is : 1.6×10−5Ωm

Current Electricity Part 1

Section: Physics

Question : 54 of 100

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When 5V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons is 2.5×10–4ms–1.If the electron density in the wire is 8×1028m–3,the resistivity of the material is close to

[Main 2015]

1.6×10−7Ωm
1.6×10−6Ωm
1.6×10−5Ωm
1.6×10−8Ωm

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