A coil having N turns is wound tightly in th form of a

Last updated: 6/20/2023

A coil having N turns is wound tightly in th form of a spiral with inner and outer radii a and respectively When a current I passes through the coil the magnetic field at its centre is 1 2 3 4 HONI b 2 o NI a HONI 2 b a HONI 10 log a b a