Question

Show that a current loop is equivalent to a magnetic dipole.

​

Answer 1

After noting the close resemblance between these two, Ampere demonstrated that a simple current loop behaves like a bar magnet and put forward that all the magnetic phenomena is due to circulating electric current. ... The dipole moment of current loop (M)= ampere turns (nI) × area of coil (A) or M=nIA M = n I A .

Answer 2

After noting the close resemblance between these two, Ampere demonstrated that a simple current loop behaves like a bar magnet and put forward that all the magnetic phenomena is due to circulating electric current. ... The dipole moment of current loop (M)= ampere turns (nI) × area of coil (A) or M=nIA M = n I A .