Question

What is the magnetic dipole moment of current carrying conductor of

area A​

Answer 1

Answer:

consider a plane loop of wire carrying current

the current carrying loop thus behave as system of two equal and opposite magnetic poles and thus is a magnetic dipole

M directly proportional to I

M directly proportional to A

M=kIA -(1)

where K is constant

if we define unit magnetic dipole moment as that of a small one turn loop of unite area carrying unit current

1=K×1×1

K=1

frome eq (1)

M=IA

for N such turns

M=NIA

SI unit of M is ampere meter ^2