If a Current of 2

question 16

Multiple Choice

If a current of 2.4 A is flowing in a cylindrical wire of diameter 2.0 mm,what is the average current density in this wire?

• A) 7.6 × 10⁵ A/m²
• B) 5.2 × 10^-6 A/m²
• C) 1.9 × 10⁵ A/m²
• D) 3.6 × 10⁵ A/m²
• E) 21 × 10^-6 A/m²

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