Series and parallel circuits: Difference between revisions

Revision as of 15:58, 30 January 2023

Revision as of 16:00, 30 January 2023

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However, in some situations, it is difficult to prevent adjacent inductors from influencing each other as the magnetic field of one device couples with the windings of its neighbors. This influence is defined by the mutual inductance M. For example, if two inductors are in series, there are two possible equivalent inductances depending on how the magnetic fields of both inductors influence each other.

When there are more than two inductors, the mutual inductance between each of them and the way the coils influence each other complicates the calculation. For a larger number of coils the total combined inductance is given by the sum of all mutual inductances between the various coils including the mutual inductance of each given coil with itself, which weis termtermed self-inductance or simply inductance. For three coils, there are six mutual inductances <math>M_{12}</math>, <math>M_{13}</math>, <math>M_{23}</math> and <math>M_{21}</math>, <math>M_{31}</math> and <math>M_{32}</math>. There are also the three self-inductances of the three coils: <math>M_{11}</math>, <math>M_{22}</math> and <math>M_{33}</math>.

Therefore