A current carrying loop is placed in a uniform magnetic field in four different orientations, I,...

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A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III \& IV. Arrange them in the decreasing order of potential energy
[IIT-JEE (Screening) 2003]
III.
IV.
(a) I \( \) III \( \) II \( \) IV
(b) I \( \) II \( \) III \( \) IV
(c) I \( \) IV \( \) II \( \) III
(d) III \( \) IV \( \) I \( \) II
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