The course objective is to introduce students to electric and magnetic field terminology, to basic laws of electromagnetics and to enable students to analyze electric circuits of time-varying currents. In addition to analysis of simple sinusoidal current circuits, the objective is to enable students to analyze balanced three-phase networks. Also, the objective is to teach the students to calculate impedance and the basic parameters of the loads in such networks, resistors, coils, capacitors and coupled coils.

The students who successfully complete the course are able to calculate magnetic field of simple symmetrical structures, to calculate the inductance of simple structure with the coils, to solve simple electric and magnetic circuits of sinusoidal currents, to calculate instantaneous, active, reactive and apparent power of the elements in the circuits and to correct power factor in single-phase and balanced three-phase circuits.

Time-invariant magnetic field, (Magnetic flux density vector, Biot-Savart Law, Magnetic flux, Ampere’s Law, Ferromagnetic materials, Magnetic properties of materials, Boundary conditions, Magnetic circuits). Slowly time-varying electromagnetic field (Electromagnetic induction, Faraday’s Law, Lentz’s Law, Eddy currents, Skin effect and proximity effect, Self inductance and mutual inductance, Transformers, Energy and forces in magnetic field). Electric circuits of time-varying current (Simple sinusoidal current circuits, Impedance, Circuit analysis in frequency domain, Complex power, Maximum average power transmission, Power factor correction, Simple resonant circuits, Magnetically coupled circuits, Balanced three-phase systems).

The teaching process consists of lectures and tutorials, with occasional video presentations. The inductive method is applied in the lectures. The students’ knowledge grows gradually, trough many simple problems solving.