2r^2
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 radii of rings are r, 2r, 2r^2, 2^3r, ………………., infinity. The magnetic field at the centre of rings will be
17
Oct
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 radii of rings are r, 2r, 2r^2, 2^3r, ………………., infinity. The magnetic field at the centre of rings will be ................... 2^3r 2r 2r^2 In figure infinite conducting rings [...]