JEE PHYSICS MCQ: CURRENT ELECTRICITY

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When a long straight uniform rod is connected across an ideal cell, the drift velocity of electrons in it is

{v}

. If a uniform hole is made along the axis of the rod and the same battery is used, then the drift velocity of electrons becomes

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Correct option: A

{v}

Option A is correct because the drift velocity depends on the voltage, resistivity, length, and electron density, but not directly on the cross-sectional area, so making a hole doesn't change it.

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