A magnetic dipole of magnetic moment M , is freely suspended in a magnetic field of induction B . The minimum and maximum value of potential energy of the dipole, respectively are

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The potential energy of the magnetic dipole is given by U = − MB cos θ Where θ is the angle between M and B For θ = 0 ∘ , U = − MB cos θ ∘ = − MB (Minimum) For θ = 18 0 ∘ , U = − MB cos 18 0 ∘ = MB (Maximum)

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