Theory and main methods of calculation of DC and sinusoidal current electric circuits in steady and transient modes are summarized. Examples of solving practical problems on the main topics studied in the discipline "Electrical Engineering" are given. Provides information on performing the calculation and graphic task for this discipline. Particular attention is paid to a thorough analysis of the examples and tasks given. Calculation and graphic assignment covers the issues of calculation of DC and sinusoidal current electric circuits. The manual is intended to help students studying the discipline "Electrical Engineering," as well as everyone who wants to get and consolidate the skills of research and calculation of electrical circuits in practical classes in the discipline and its independent study.