How to find magnetic moment of semicircle when length of wire and pole strength are given?

question is:- 62.8cm long magnetized wire is bent into the form of a semicircle.The pole strength is 2Am.Moment of resultant magnet is?

a)2*31.4

b)2*.314

c)2* .1

d)2*.4

e)2*.628

Sanandanan M

14 Years agoGrade 12