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If the length of a wire conductor is dou...

If the length of a wire conductor is doubled by strctching it while keeping the potential difference constant, by what factor will the drift speed of the electrons change?

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Verified by Experts

Taking `l_(1) = l`,
`l_(2) = 2l`
Since `V_(d) prop l, (V_(d_(2)))/(V_(d_(1))) = (l_(2))/(l_(1))`
`(V_(d_(2)))/(V_(d_(1))) = (2l)/(l)`
`:. V_(d_(2)) = 2 V_(d_(1))`
`:.` Drift speed of electrons changes by a factor 2.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CURRENT ELECTRICITY -ADDITIONAL EXERCISES
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