The work done in rotating a magnet of magnetic moment 2 A-m2 in a magn – McqOptions

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1.	The work done in rotating a magnet of magnetic moment 2 A-m2 in a magnetic field of 5 ´ 10?3 T from the direction along the magnetic field to opposite direction to the magnetic field, is [MP PET 2003]
A.	Zero
B.	2 ´ 10?2 J
C.	10?2 J
D.	10 J
Answer» C. 10?2 J

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