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A wire has a current density of 18 amm2 if the drift

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Reference no: EM13592823

A wire has a current density of 18 A/mm2. If the drift velocity is 5.0×10-8 m/s, how many free electrons does the wire have in a 1.0 m length? The radius of the wire is 1.0 mm.

A)7.1*10^27
B)2.3*10^33
C)2.3*10^27
D)7.1*10^21

Reference no: EM13592823

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