A Wire Carrying a Current Is Shaped in the Form

question 64

Multiple Choice

A wire carrying a current is shaped in the form of a circular loop of radius 3.0 mm. If the magnetic field strength that this current produces at the center of the loop is 1.1 mT, what is the magnitude of the current that flows through the wire? (μ₀ = 4π × 10^-7 T ∙ m/A)

• A) 5.3 A
• B) 16 A
• C) 9.1 A
• D) 23 A

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