Tutorial for university students, in 2 kn. — Kursk: Kursk . gov. Tech. Un-t, 2009. — 154 s. The elements and properties of simple and complex DC and AC electrical circuits, the basic laws and methods of analysis of linear DC circuits and under harmonic influence. are considered. The main causes of occurrence and principles of analysis of transient processes in electrical circuits. It is intended for students studying in instrument-making specialties: “Design and technology of electronic computing tools”, “Computer machines, complexes, systems and networks”, “Design and technology of electronic means”, etc.