STANDARDPhysics-Magnetism
STANDARD Physics Potential Energy of a Magnetic Dipole MCQ Question
Type: MCQ-conceptual-Medium
A current carrying loop is placed in a uniform magnetic field in four different orientations as shown in figure. Arrange them in the decreasing order of potential energy.
A
4, 2, 3, 1
B
1, 4, 2, 3
C
4, 3, 2, 1
D
1, 2, 3, 4
Correct Answer
Option B
Detailed Explanation
The potential energy of a magnetic dipole in a magnetic field is given by U = -MB cos θ. The orientation with the smallest angle θ with the field direction has the lowest potential energy. Arranging the orientations in decreasing order of potential energy gives 1, 4, 2, 3.
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