8.11 SINUSOIDAL STEADY-STATE IN CIRCUITS WITH COUPLED COILS
The physical basis for mutual inductance between two coils that share a common magnetic flux component has been dealt with in Chapter 1.
Flux linkage in a coil can be produced in two ways. The first method is to send a current through the coil. The flux linkage produced in the coil will be proportional to the current through it and the proportionality constant is its self-inductance L. We now call this inductance as self-inductance because we need to distinguish it from mutual inductance. However, the qualifier ‘self’ is often dropped in practice and the word ‘inductance’ occurring alone is taken to mean ‘self-inductance’ by default.
The flux linkage will be time-varying when the current ...
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