question_answer

A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is \[\overset{\to }{\mathop{F}}\,\], the net force on the remaining three arms of the loop is

A) \[3\overset{\to }{\mathop{F}}\,\] 

B) \[-\overset{\to }{\mathop{F}}\,\] 

C) \[-3\overset{\to }{\mathop{F}}\,\]

D)  \[\overset{\to }{\mathop{F}}\,\]