25 An equilateral triangle of side length 1 is formed from a

Last updated: 6/30/2023

25 An equilateral triangle of side length 1 is formed from a piece of wire of uniform resistance The current I is fed as shown in the figure Then the magnitude of the magnetic field at its centre O is b a 3 l 2 l c Hol 2 l C 3 3 l b 2 l d zero