Question: The current in a wire is doubled. What happens to (a) The current density, (b) The conduction-electron density, (c) The mean time between collisions, (d)

The current in a wire is doubled. What happens to

(a) The current density,

(b) The conduction-electron density,

(c) The mean time between collisions,

(d) The electron drift speed? Are each of these doubled, halved, or unchanged? Explain.

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