9.4 Procedure to Calculate Inductance
In order to calculate the inductance of an inductor, we’re going to follow a certain procedure as we did in the case of capacitance of a specific capacitor. If it’s a procedure to calculate the inductance, first we’ll assume that a certain current is flowing through the inductor. Let current i is flowing through the inductor.
As a second step, we will calculate the magnetic field of the inductor by applying Ampère’s law. Calculate the magnetic field by applying Ampere’s law, which is integral of B dot dl integrated over a closed loop C is equal to μ0 times i inclosed.
As a third step, once we’ve found the magnetic field of the inductor, we will calculate the magnetic flux through the cross-sectional area of the inductor.
Once we determine the flux through the cross-sectional area of the inductor, then the last step is calculating the inductance from its definition. And that is L is equal to N times number of terms times the magnetic flux divided by the current.