A magnetized needle of the magnetic moment 20 JT-1 is placed at 60o w – McqOptions

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1.	A magnetized needle of the magnetic moment 20 JT-1 is placed at 60o with the direction of the uniform magnetic field of magnitude 9 T. What is the torque acting on the needle?
A.	225 J
B.	625 J
C.	155.8 J
D.	318 J
Answer» D. 318 J

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