# Fundamentals of Electrical Engineering I

## Subject description

Electric charge, current and voltage. Conservation of charge, continuity equation. Kirchhoff’s current law. Kirchhoff’s voltage law. Resistor. Non-linear resistor. Temperature dependence of resistors. Voltage-current characteristics. Current and voltage sources. DC electric circuits. Circuit analysis and theorems.

Charge distributions. Electric field. Coulomb’s law of electric force. Electric field strength. Gauss law of electric field. Work of electric force, electric potential energy. Electric potential. Voltage. Electric dipole. Conductor and electric field. Image theory. Dielectric material and electric field. Polarization. Electric flux, Electric flux density. Dielectric permittivity. Boundary conditions of electric field. Dielectric breakdown. Capacitance. Capacitor. Partial capacitances. Electric field energy. Electric force and torque. Capacitor circuits.

Current field. Electric current density. Electric and current field duality. Ohm’s law. Joule’s law. Specific electric conductivity. Boundary conditions of current field. Resistance and conductance. Grounding resistance.

## Objectives and competences

To acquire fundamental knowledge on electrostatic field, current field and DC electric circuits. The acquired knowledge serves as a basis for further electrotechnical studies.To acquire fundamental knowledge on electrostatic field, current field and DC electric circuits. The acquired knowledge serves as a basis for further electrotechnical studies.

## Teaching and learning methods

Lectures, exercises, laboratory work (practicum), homeworks and seminars, IT assisted teaching (video, animations, web materials, simulation examples, …)

## Expected study results

After successful completion of the course, students should be able to:

– define basic quantities, units and constants from the field of electrotehnics and explain their meaning,

– explain the relations between quantities, perform analytical calculations and interpret the results,

– study the instructions for practical experiments from the field of electrotehnics, perform laboratory experiments and evaluate the results.

After successful completion of the course, students should be able to:

– define basic quantities, units and constants from the field of electrotehnics and explain their meaning,

– explain the relations between quantities, perform analytical calculations and interpret the results,

– study the instructions for practical experiments from the field of electrotehnics, perform laboratory experiments and evaluate the results.

## Basic sources and literature

Humar I., Bulić E., Sinigoj A. R.: Osnove elektrotehnike I. 1. izd. Ljubljana: Založba FE, 2017.

Sinigoj A. R., Humar I.: Video Osnove elektrotehnike II. Ljubljana, 2012.

Humar I.: Fundamentals of electrical engineering through computationally supported laboratory experiments. 1. izd. Ljubljana: Založba FE, 2018.

Sinigoj A. R.: Osnove elektromagnetike, Založba FE in FRI, Ljubljana, 1994.

Sinigoj A. R.: Elektrotehnika 1 in 2, Založba FE in FRI, Ljubljana, 2006.

Humar I., Bulić E., BSinigoj A. R.: OE I – LAB, Laboratorijske vaje. Založba FE in FRI, Ljubljana, 2013.

Duffin W. J.: Electricity and magnetism, McGraw-Hill, London, 1990.

Halliday D, Resnick R., Walker J., Fundamentals of Physics, Wiley, 1997.

Popović D. B.: Osnovi elektrotehnike 1 in 2, Građevanska knjiga, Beograd, 1986.

Purcell E. M.: Electricity and magnetism, McGraw-Hill, New York, 1965.

Albach M.: Grundlagen der Electrotechnik, Pearson Studium, Muenchen, 2005.

Notaroš B. M.: Electromagnetics, Pearson, 2010.

spletna stran http://torina.fe.uni-lj.si/oe/

## Stay up to date

University of Ljubljana, Faculty of Electrical Engineering Tržaška cesta 25, 1000 Ljubljana