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 magnetized needle of the magnetic moment 20 JT-1 is placed at 60o wi

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.