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the expression for the potential energy of acurrent loop  when it is placed in amagnetic field
Asked by anithaguthula666 | 29 Mar, 2019, 21:43: PM
answered-by-expert Expert Answer
Just like an electric dipole 
The potential energy of the loop in an external magnetic field is
U = -μ.B ( scalar product of magnetic moment and magnetic field)
U = -μB cosθ where θ is the angle between magnetic moment and magnetic field. 
Magnetic moment μ is define as 
μ = IA
I is THE CURRENT an A is the area of the loop
Answered by Ankit K | 29 Mar, 2019, 22:35: PM
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