일반물리학 2 — Magnetic Fields: Problem 20

20 A circular wire loop of radius 15.0 cm carries a current of 3.20 A. It is placed so that the normal to its plane makes an angle of 41.0° with a uniform magnetic field of magnitude 12.0 T. (a) Calculate the magnitude of the magnetic dipole moment of the loop. (b) What is the magnitude of the torque acting on the loop?