A voltage V is connected across a wire of length and radius r How is the electron drift speed affected if (a) is doubled, (b) r is doubled, (c) V is doubled, assuming in each case that other quantities stay the same

Question: A voltage V is connected across a wire of length and radius r. How is the electron drift speed affected if (a) is doubled,

A voltage V is connected across a wire of length and radius r. How is the electron drift speed affected if
(a) ℓ is doubled,
(b) r is doubled,
(c) V is doubled, assuming in each case that other quantities stay the same?

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