Osnovi Elektrotehnike 1 is a textbook for students of electrical engineering faculties. It covers the basics of electrostatics and electric circuits with constant (direct) currents. The textbook follows the general concept accepted by most of the world’s authors. The author of the textbook is Branko D. Popović, a professor at the Faculty of Electrical Engineering in Belgrade, Serbia.

The textbook has 338 pages and is written in Serbian language with Latin script. It was published in 2004 by Stručna Knjižara, a specialized bookstore for technical literature. The textbook is intended for the first year of electrical engineering studies, but it can also be useful for students of other faculties and high schools that deal with electrical engineering topics.

The textbook contains many examples, exercises, problems and solutions that help the students to understand and apply the theoretical concepts. The textbook also includes some historical and biographical notes about the famous scientists and engineers who contributed to the development of electrical engineering. The textbook is divided into six chapters:

• Chapter 1: Introduction to Electrical Engineering
• Chapter 2: Electrostatics
• Chapter 3: Electric Current and Resistance
• Chapter 4: Kirchhoff’s Laws and Basic Circuit Analysis
• Chapter 5: Network Theorems and Methods
• Chapter 6: Capacitors and Inductors

Osnovi Elektrotehnike 1 is a comprehensive and modern textbook that provides a solid foundation for further studies in electrical engineering. It is suitable for both self-study and classroom use. It can be ordered online from Stručna Knjižara website[^1^] or downloaded as a PDF file from various sources on the internet[^2^].

In this article, we will briefly review the main topics and concepts covered in each chapter of the textbook Osnovi Elektrotehnike 1 by Branko D. Popović.

This chapter introduces the basic concepts and definitions of electrical engineering, such as electric charge, electric field, electric potential, electric force, electric power and energy. It also explains the difference between scalar and vector quantities, and the use of different units and systems of measurement. The chapter also presents some historical facts and achievements in the field of electrical engineering, such as the discovery of electricity, the invention of the battery, the development of electromagnetism and the creation of the first electric devices.

This chapter deals with the study of electric charges at rest and their effects on other charges and objects. It covers the topics of Coulomb’s law, electric flux, Gauss’s law, electric potential and potential difference, capacitance and capacitors. It also explains how to calculate the electric field and potential due to various charge distributions, such as point charges, line charges, surface charges and volume charges. The chapter also discusses some applications of electrostatics, such as electrostatic generators, electrostatic induction, electrostatic shielding and electrostatic precipitation.

This chapter focuses on the study of electric charges in motion and their interaction with conductors and resistors. It covers the topics of electric current, current density, Ohm’s law, resistance and resistivity, temperature dependence of resistance, power dissipation and Joule’s law. It also explains how to measure electric current and resistance using ammeters and voltmeters, and how to connect resistors in series and parallel circuits. The chapter also introduces some concepts related to semiconductors, such as doping, intrinsic and extrinsic semiconductors, p-type and n-type semiconductors and diodes.

This chapter deals with the analysis of electric circuits using Kirchhoff’s current law (KCL) and Kirchhoff’s voltage law (KVL). It covers the topics of node analysis, loop analysis, mesh analysis and nodal analysis. It also explains how to use superposition principle, source transformation, Thevenin’s theorem and Norton’s theorem to simplify complex circuits. The chapter also discusses some special types of circuits, such as Wheatstone bridge, potentiometer, voltage divider and current divider.

This chapter extends the analysis of electric circuits using more advanced network theorems and methods. It covers the topics of maximum power transfer theorem, reciprocity theorem, substitution theorem, compensation theorem, Millman’s theorem and Tellegen’s theorem. It also explains how to use delta-wye transformation, star-mesh transformation, Y-Δ transformation and Δ-Y transformation to convert between different types of circuit configurations. The chapter also introduces some concepts related to network functions, such as impedance function, admittance function, transfer function and frequency response.

This chapter deals with the study of capacitors and inductors as energy storage elements in electric circuits. It covers the topics of capacitance and capacitors in series and parallel circuits, energy stored in a capacitor, charging and discharging of a capacitor through a resistor. It also covers the topics of inductance and inductors in series and parallel circuits, energy stored in an inductor, self-inductance and mutual inductance. The chapter also discusses some applications of capacitors and inductors, such as filters, oscillators, transformers and relays.