Permanent, causal, linear electrical circuits with localized constants assume that signal propagation does not occur in the circuit. This means that the wavelength of the signals in the circuit is large relative to its dimensions.
The study of these circuits usually involves calculating the response (voltage across a dipole, current flowing through an impedance, etc.) to one or more given actions. This study is based on the basic laws of electrical circuits (Kirchhoff's laws, behavioral definitions of elementary components and sources encountered in practice) and using the mathematical tools of permanent linear causal systems.
The specificity of electrical circuits in this field of linear systems has led to the establishment of special theorems to facilitate the study of these circuits (linearity, substitution, Thévenin / Norton, reciprocity, Kennelly, Tellegen).
The set of articles on electrical circuits comprises three parts:
[E100v2] Linear electric circuits. Definitions and theorems ;
[E102v2]
Linear electrical circuits. Analysis methods and energy considerations;
[E104v2]
Linear electrical circuits. Parametric representation.