A potential difference of \( 5 \mathrm{~V} \) is applied across a c...

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A potential difference of \( 5 \mathrm{~V} \) is applied across a conductor of length \( 10 \mathrm{~cm} \). If drift velocity of electrons is \( 2.5 \times 10^{-4} \mathrm{~m} / \mathrm{s} \), then electron mobility will be
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