A coil of 150 turns of wire is in the form of a circle of diameter 7.5 cm, and sits in the center of a dipole magnet that produces a uniform magnetic field of strength 1.5 T. The torque on the coil has a maximum value of 0.25 Nm. What is the current in the coils?
A. 9.4 A
B. 200 mA
C. 4.7 mA
D. 63 mA
E. 94 mA
D. 63 mA
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