The intensity of an inductive magnetic field (Magnetizing Force) H in a coil is subordinate to the intensity of the current flowing in a certain amount of turns. The higher the current, the stronger the magnetic field. In addition, the more turns, the more limited the field lines.
We can define FMM Magneto-Motive Force as the ratio of the flux production at the core of a magnetic circuit, analogously to the electro-motive force that flows from the electric charges in an electric circuit.
The cause is the magneto-motive force, similar to the electric voltage. The effect it causes is the magnetic flux, comparable to the flow of charges, electric current and the opposition to the effect is the magnetic reluctance, parallel to the electric resistance.
Through this verification, magnetic circuits or magnetic paths can be analyzed as electrical circuits. Despite the analogy between electric and magnetic circuits, it should be borne in mind that the magnetic flux φ is constituted in the nucleus by altering the atomic structure of the nucleus, because of the external pressure of the magneto-motive force (MMF) and is not a measure of the flow of charged particles, such as the electric current.