A 0.61-mm-diameter copper wire carries a tiny current of 2.6 μA. The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m³ NA-6.02 x 1023 Estimate the electron drift velocity. Assume one free electron per atom. Express your answer to two significant figures and include the appropriate units. НА vd = Value Units ?
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