Consider a circuit consisting of n-coils that are magnetically coupled with each other. Under linear conditions, the total flux linking any one coil is the sum of self flux and mutual flux due to (n-1) coils. To find the self flux of a coil, excite that coil alone. the mutual […]
Ampere’s law relates the integrated magnetic field around a closed loop to the electric current passing through the surface of the loop. It was first discovered by André-Marie Ampère in 1826, later re-derived by Maxwell using hydrodynamics in 1861. Now it is one of the Maxwell equations, which is the […]
Figure 1 shows a pair of coupled inductors with self inductance and , magnetically coupled through coupling coefficient . For the dot notation shown in Figure 1, the equations that relate terminal voltages and terminal current in frequency domain are given by, (1) where is the mutual inductance between […]