A 250 a Current Is Carried by a Copper Wire of of Radius

question 53

Multiple Choice

A 2.50 A current is carried by a copper wire of radius 1.0 mm. If the density of conduction electrons is 8.0 × 10²⁸ m⁻³, what is the drift velocity of the conduction electrons?

• A) 3.0 × 10⁸ m/s
• B) 3.2 × 10⁻⁴ m/s
• C) 1.6 × 10⁻⁵ m/s
• D) 6.2 × 10⁻⁴ m/s
• E) 6.2 × 10⁻⁵ m/s

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