Physics - Current Electricity Question with Solution | TestHub

A point$\mathrm{P}$lies on the axis of a flat coil carrying a current. The magnetic moment of the coil is$\mathrm{\mu }.$What will be the magnetic field at point$\mathrm{P}$? It is given that the distance of$\mathrm{P}$from the centre of coil is$\mathrm{d}$, which is large compared to the radius of the coil.