An copper wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps. What is the absolute value of the charge density in the wire? The density of copper is 8.96 g/cm3. The molar mass of copper is 63.5 g/mol. Assume each atom of metal contributes one free electron. 5.48 × 10^28 electrons/m^3 9.58 × 10^28 electrons/m^3 6.48 × 10^28 electrons/m^3 8.48 × 10^28 electrons/m^3
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