"Guide to laboratory work on the theoretical foundations of electrical engineering . H. 1" is a unique manual created by a team of authors, which will become an indispensable companion for students and teachers studying electrical engineering. This book offers the reader not just a set of instructions, but a whole system that allows a deeper understanding of the theoretical foundations of electrical engineering through practical experiments and laboratory work. In the first part of this guide, you will find carefully designed laboratory work that covers a wide range of topics, ranging from the basics of electrical circuits to more complex aspects such as reactive circuit analysis and the use of various measuring instruments. Each work includes detailed instructions, theoretical justifications, as well as tips for conducting experiments, which allows students not only to perform tasks, but also to take a meaningful approach to the materials studied. This book will be of interest not only to students of technical specialties, but also to teachers who are looking for a quality manual for organizing the educational process. It is ideal for those who want to deepen their knowledge in the field of electrical engineering, as well as for practicing engineers who want to refresh their skills and knowledge. The age category of readers ranges from high school students interested in physics and engineering to undergraduate and graduate students who seek a deeper understanding of the subject. The topics raised in this guide cover not only technical aspects, but also methodological approaches to learning. The authors emphasize the importance of practical experience in the study of theory, which makes the book especially valuable for students who study not only in lectures, but also in laboratories. In the context of modern education, where practical skills are becoming increasingly important, this manual offers readers the opportunity to apply the theory in practice, which significantly improves the assimilation of material. The style of the authors is distinguished by clarity and accessibility of the presentation, which makes complex concepts understandable even for beginners. They use many illustrations and diagrams that help to visualize processes and phenomena, which is especially important in such a complex field as electrical engineering. This guide is not only informative, but also inspires further study of the subject, encouraging readers to ask questions and seek answers. It is worth noting that the team of authors who created this guide includes experienced teachers and practitioners, which ensures high quality of the material. Their previous work has also earned recognition in the educational environment, and this guide continues their tradition by offering readers up-to-date knowledge and practical skills. If you are looking for a book that will help you not only to master the theoretical foundations of electrical engineering, but also to put them into practice, "Guide to laboratory work on the theoretical foundations of electrical engineering. H. 1" will be your reliable assistant. This manual not only teaches, but also inspires, opening up new horizons in the world of electrical engineering. Do not miss the opportunity to take a step towards professional growth and deepening your knowledge in this fascinating and important area!