The Справочник электрика is a free educational and reference Android application developed by strange theory. It is a comprehensive handbook for electricians, containing a collection of informative articles on various topics related to electrical engineering.

This application covers a wide range of articles that include serial connection of conductors, Kirchhoff's first law, Ohm's law, DC electric circuit, electrical resistance, charge and discharge of the capacitor, turning on the magnetic starter, motor protection against two phases, contactors, and various tables, wiring diagrams, and more.

The articles are well-written, informative, and provide a clear understanding of the concepts. The interface is user-friendly, making it easy to navigate through the different articles. Overall, the Справочник электрика is an excellent resource for electricians and anyone who wants to learn more about electrical engineering.