Question

A bar magnet of magnetic moment
100 Am’is bent at its midpoint such that,
the two parts make an angle of 120°. The
new magnetic moment is
(A) 100V2Am
(B) 100 Am
(C) 50/3Am
(D) 50 Am​

Answer 1

Answer:

the net vector would be root{(M/2)^2+(M/2)^2+2×M/2×M/2×cos120°} in the direction 60° east of north.