A Circular,20-Turn Coil Has a Radius of 5 $\times$ 10^-2 a · M²
D)0

question 13

Multiple Choice

A circular,20-turn coil has a radius of 5.0 cm.What is the magnitude of the magnetic moment of the coil when it carries a current of 2.5 A?

• A)1.5 A · m²
• B)0.16 A · m²
• C)2.0 \(\times\) 10^-2 A · m²
• D)0.39 A · m²
• E)3.9 kA · m²

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