A steel wire of length l has a magnetic moment M. It is bent into a semicircular arc. What is the new magnetic moment?

A steel wire of length l has a magnetic moment M. It is then bent into semicircular arc. What is the new magnetic moment?

A steel wire of length l has a magnetic moment M . It is then bent into a semicircular arc. The new magnetic moment is

A steel wire of length 'l' has a magnetic moment 'M'. It has been bent into a semi-cricular are. What is the new magnetic moment?