The drift velocity of the electrons in a copper wire of length 2 m under

The drift velocity of the electrons in a copper wire of length 2 m under the application of a potential difference of 200 V is 0.5 ms⁻¹. Their mobility is (in m² V⁻¹ s⁻¹)

Options

(a) 2.5×10⁻³
(b) 2.5×10⁻²
(c) 5×10²
(d) 5×10⁻³

Correct Answer:

5×10⁻³

Explanation:

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