Two circular coils X and Y having equal number of turns

Last updated: 6/10/2023

Two circular coils X and Y having equal number of turns carry equal currents in the same sence and subtend same solid angle at point O If the smaller coil X is midway between O and Y and If we represent the magnetic induction due to bigger coil Y at O as By and that due to smaller coil X at O as Bx then 2r d 2