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Magnetic field is 0.5T, radius is r=1m, current in one loop is I=2A. the angle between the magnetic moment and the external B field is 30 degrees. calculate the magnitude of the magnetic torque.

so i know that torque= IANBsin(30)

torque= 2*3.14*1*0.5*sin(30)

the answer is 1.57nM, but i keep getting -3.10 on my calculator and i dont know what i'm doing wrong :( can someone help me out?

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