Scientia Publishing House – Sapientia Hungarian University of Transylvania

Theoretical Electrical Engineering: A Comprehensive Problem-Solving Manual and Exercise Collection

This collection of exercises is the result of twenty years of experience teaching electrical engineering. Given that the fundamental principles and methodologies for analyzing electrical circuits have been well established, the primary objective of this work is to introduce new approaches to explanation and illustration rather than to propose novel analytical methods.

A persistent trend has emerged whereby students attempt to solve problems without a solid foundation in theoretical knowledge or with significant gaps in their understanding. This observation is based on two decades of teaching electrical engineering and assessing the performance of hundreds of students. However, since the foundational principles of the subject have long been established and the methods for mastering them remain unchanged, the most effective approach continues to be structured progression: understanding theoretical concepts, mastering the fundamental laws, learning and practicing problem-solving techniques, and reinforcing this knowledge through systematic exercises.

The first chapter of this collection concisely summarizes the theoretical knowledge necessary for solving direct current (DC) circuit problems at a technical level, without delving into extensive theoretical explanations. It should be noted that most of this information is available in numerous other publications.

The second chapter presents problem solutions accompanied by detailed explanations. These solutions are designed to reflect best practices by not only outlining the appropriate methods but also explaining their application. Additionally, where relevant, the explanations highlight instances in which certain methods may lead to unnecessary complexity, making them less suitable for a given problem. However, it should be emphasized that while alternative approaches may be more intricate, they are not necessarily incorrect.

The third chapter contains a collection of recommended exercises, supplemented with numerous subcategories to explore various circuit-solving strategies. These exercises provide only the final computed results, with the expectation that mastery of the theoretical content in the first chapter, along with the detailed problem solutions in the second chapter, will offer sufficient guidance for their resolution.