Asked by Joe

A copper wire that has a diameter of 2.9 mm carries a current of 39.0 A. Assuming that each copper atom contributes one free electron to the metal, find the drift velocity of the electrons in the wire. The molar mass of copper is 63.5 g/mol and the density of copper is 8.95 g/cm3.
Answered by bobpursley
velocity*area*charge=current where..

charge=e*density=e*avagnumber*8.95/63.5

solve for delocity
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