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Lecturer(s)
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Rejfek Luboš, Ing. Ph.D.
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Brtník Bohumil, Ing. Dr.
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Course content
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1. Basic concepts of electrical engineering - Coulomb's law, electric charge, electrostatic field strength, electric voltage, electrostatic field strength. Electric current, current density, power and work of electric current. 2. Direct currents, source of electric current, Ohm's law, solution of linear circuits, Kirchhoff's laws. 3. Methods of solving DC circuits - simplification method, Kirchhoff's equations method, loop current method, nodal voltage method. Methods of solving non-linear circuits. 4. Dielectric circuits - polarization of dielectric, basic quantities and laws, Gauss's theorem of electrostatics, capacitance, series and parallel dielectric circuits, capacitor as an element of an electric circuit, transient process. 5. Magnetic circuits - basic quantities, Hopkinson's law, magnetic properties of substances. 6. Induction law, self-induction phenomenon, mutual induction phenomenon. Magnetic field energy. Magnetization of the environment 7. Harmonic steady state circuits - signal in a harmonic steady state, simple passive bipoles in a harmonic steady state circuit, resistor, inductor (ideal coil), capacitor (ideal capacitor), compound circuits. Performance in a harmonic current circuit. 8. Phasor diagrams. Resonant circuits - series, parallel, resonant curve. Three phase circuits. 9. Double gates - reactance filters, waveform of attenuation and phase in passband and non-passband frequencies. 10. Transmission lines - line element, line phasor diagram, voltage waveform, characteristic impedance of the line, wave propagation along the line, infinite length line, shorted line, dead line, finite length line, reflection factor. 11. Electromagnetic field - Maxwell's equations, Maxwell's displacement current, first Maxwell's equation, second Maxwell's equation, basic relations describing the propagation of electromagnetic field. 12. Modifications of Maxwell's equations for electrostatic, stationary current, magnetostatic, quasi-stationary and non-stationary fields. Solution of Maxwell's equations by mag. vector potential. Reflection and refraction of electromag. waves. Antennas and propagation of electromagnetic waves.
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing), Dialogic (discussion, interview, brainstorming)
- Participation in classes
- 65 hours per semester
- Preparation for an exam
- 65 hours per semester
- Contact teaching
- 50 hours per semester
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Learning outcomes
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This course is an introduction to the study of electrical engineering. The course includes the solution of Maxwell's equations in integral and differential form, including numerical methods, propagation of electromagnetic waves on lines and in free space. Calculations of circuits with linear and non-linear elements and transient phenomena in circuits with R, L, C. Analysis of circuits in the time domain. Analysis of the properties of double branes using matrices. Basic frequency filters.
After completing the course, the student is able to orientate in electromagnetism, Maxwell's equations and problems of wave propagation. The student is able to analyze DC and AC circuits, linear and nonlinear, in steady state and transient for single phase + three phase power networks, transient characteristics, frequency and transmission characteristics, and characteristics of double gates, feedback and electrical filters.
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Prerequisites
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Students are able to orientate in electrostatics, steady currents, static magnetic field, electromagnetic fields, Maxwell equations and wave propagation problems. They can analyze DC and AC circuits (transients and steady states).
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Assessment methods and criteria
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Oral examination, Written examination, Student performance assessment
Students are able to orientate in electrostatics, steady currents, static magnetic field, electromagnetic fields, Maxwell equations and wave propagation problems. They can analyze DC and AC circuits (transients and steady states). Requirements that will be announced by the teacher at the first lecture: participation in seminars is mandatory, two absences are tolerated, for credit you must pass a mid-semester and semester test.
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Recommended literature
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BEZOUŠEK, Pavel, Vladimír SCHEJBAL a Pavel ŠEDIVÝ. Elektrotechnika.. Pardubice: Univerzita Pardubice, 2003. ISBN 80-719-4620-6.
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Brtník, B. Elektrické obvody v příkladech. Praha: BEN - technická literatura, 2010. ISBN 978-80-7300-436-1.
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Brtník B. Teoretická elektrotechnika. Praha: BEN, 2017. ISBN 978-80-7300-547-4.
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BRTNÍK B. Základy obvodové techniky I.. Praha: BEN, 2014. ISBN 978-80-7300-523-8.
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Brtník, Bohumil. Elektronická opora k předmětu: Elektrotechnika. 2024.
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