The content of the textbook covers the main areas of undergraduate training, is aimed at consolidating the theoretical foundations of the course, as well as at developing practical skills among students when calculating electrical circuits. The textbook complies with the State Educational Standard of Higher Education in the direction of 35.03.06 "Agroengineering" and the program of the course "Electrical Engineering and Electronics" for training profiles: "Technical Systems in Agribusiness," "Technical Service in the Agro-Industrial Complex."