A Circular Coil of Wire Has 25 Turns and Has

question 10

Multiple Choice

A circular coil of wire has 25 turns and has a radius of 0.075 m.The coil is located in a variable magnetic field whose behavior is shown on the graph.At all times, the magnetic field is directed at an angle of 75° relative to the normal to the plane of a loop.What is the average emf induced in the coil in the time interval from t = 5.00 s to 7.50 s?

• A)-18 mV
• B)-49 mV
• C)-92 mV
• D)-140 mV
• E)-180 mV

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