the expression for the potential energy of acurrent loop  when it is placed in amagnetic field

Asked by anithaguthula666 | 29th Mar, 2019, 09:43: PM

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 | 29th Mar, 2019, 10:35: PM

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