A circular loop of wire having a radius of 8.0 cm carries a current of 0.20 A. A vector of unit length and parallel to the dipole moment μ of the loop is given by 0.60 i-0.80 j. (This unit vector gives the orientation of the magnetic dipole moment vector.) If the loop is located in a uniform magnetic field given by B=0.25 i+0.30 k T. Find (a) the torque on the loop (in unitvector notation) and (b) the orientation energy of the loop.
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