Please answer question 77 of 90 In figure, infinite conducting rings each having current i in the direction shown are placed concentrically in the same plane as shown in the figure. The radius of rings are r, 2r, 22r, 23r ......∞. The magnetic field at the centre of rings will be 1 . ○ Z e r o 2 . ○ μ 0 i r 3 . ○ μ 0 i 2 r 4 . ○ μ 0 i 3 r . please answer correctly Share with your friends Share 2 Vidhi Singh answered this Please find this answer -1 View Full Answer