Q 15 A small portion BCD of a very long straight wire is

Last updated: 6/11/2023

Q 15 A small portion BCD of a very long straight wire is making a quadrant of a circle of radius r as shown in figure If current I is flowing through this resistance then find out value of magnetic field at the centre of circle A Zero B C 2 2 1 47 2 2 2 D Hol 2 2 1