A Flat Circular Coil Has 200 Identical Loops of Very

question 99

Multiple Choice

A flat circular coil has 200 identical loops of very thin wire.Each loop has an area of 0.12 m² and carries 0.50 A of current.This coil is placed in a magnetic field of 0.050 T oriented at 30° to the plane of the loop.What is the magnitude of the magnetic torque on the coil?

• A)0.25 N ∙ m
• B)0.52 N ∙ m
• C)2.5 N ∙ m
• D)5.2 N ∙ m

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