U ovome radu izložena je teorija magnetskih krugova kao i teorija magnetiziranja feromagnetskih materijala, iznesene su magnetske veličine, analogija između električnih i magnetskih veličina te obrubni magnetski tok radi točnijeg proračuna magnetskih krugova. Na odabranim primjerima izvršeni su ručni numerički proračuni i numerički proračuni u programskom paketu ANSYS-Ansoft Maxwell. Dobiveni rezultati na oba načina su uspoređeni i komentirani te su u privitku priložene upute za korištenje programa Ansoft Maxwell iz programskog paketa ANSYS.

This paper deals with the theory of magnetic circuits as well as the theory of magnetization of ferromagnetic materials.Magnetic magnitudes are presented as well as an analogy between electric and magnetic magnitudes, and fringing flux for a more accurate calculation of magnetic circuits. Manual numerical calculations and numerical calculations in the ANSYS-Ansoft Maxwell software package were performed on selected examples. The results obtained in both ways are compared and commented and are accompanied by instructions for using the Ansoft Maxwell program from the ANSYS software package