Physics Magnetism and Matter Magnetic Field Lines, Magnetic Field, Induction, Moment MCQ (Single Correct)

The work done in moving a dipole from its most stable to most unstable position in a 0.09 T uniform magnetic field is (dipole moment of this dipole = 0.5 A m 2 )

A
0.07 J
B
0.08 J
C
0.09 J
D
0.1 J

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The correct answer is:
C

Since the most stable position is at and the most unstable position is at , then the work done is given by

Here, and

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