7.A uniform conducting rectangular loop of sides l, b and mass m carrying current i is hanging horizontally with the help of two vertical strings. There exists a uniform horizontal magnetic field B which is parallel to the longer side of loop. Find the least value of tension in the strings? A) mg-Bib/2 B) mg-2iBb /2 C) mg+2iBb/2 D) mg+iBb/2

7.A uniform conducting rectangular loop of sides l, b and mass m carry

1.	7.A uniform conducting rectangular loop of sides l, b and mass m carrying current i is hanging horizontally with the help of two vertical strings. There exists a uniform horizontal magnetic field B which is parallel to the longer side of loop. Find the least value of tension in the strings? A) mg-Bib/2 B) mg-2iBb /2 C) mg+2iBb/2 D) mg+iBb/2
Answer» 7.A uniform conducting rectangular loop of sides l, b and mass m carrying current i is hanging horizontally with the help of two vertical strings. There exists a uniform horizontal magnetic field B which is parallel to the longer side of loop. Find the least value of tension in the strings? A) mg-Bib/2 B) mg-2iBb /2 C) mg+2iBb/2 D) mg+iBb/2