Q. A wire ABCDEF with each side of length ' l ' bent as shown in figure and carrying a current I. If it is placed in a uniform magnetic field B which is parallel to +y direction. Magnetic force experienced by the wire is:- 1 . B I l , a l o n g + z d i r e c t i o n 2 . 2 B I l , a l o n g + z d i r e c t i o n 3 . B I l , a l o n g - z d i r e c t i o n 4 . 2 B I l , a l o n g - z d i r e c t i o n Share with your friends Share 14 Deepak Kumar answered this Dear Student , Net magnetic force on a current wire of any shape ,placed in an uniform magnetic field is equal to the magnetic force on a straight wire joining the end points .So net force on the given wire will be equal to the force on an imaginary wire FA having current I from F to A F→=I (Li )×(Bj)=ILBkso the correct answer is ILB positive Z Option (1) is correct Regards 14 View Full Answer
