For Copper, ρ = 8

question 129

Multiple Choice

For copper, ρ = 8.93 g/cm³ and M = 63.5 g/mol. Assuming one free electron per copper atom, what is the drift velocity of electrons in a copper wire of radius 0.625 mm carrying a current of 3 A?

• A) 3.54 × 10^-4 m/s
• B) 1.80 × 10^-4 m/s
• C) 4.26 × 10^-4 m/s
• D) 7.52 × 10^-4 m/s
• E) 2.46 × 10^-4 m/s

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