Equivalent Schemes: MagnetsDiscusses the relationship between magnetic field intensity and magnetic flux density in equivalent schemes for magnets.
Derived FunctorsExplores derived functors, Ext-modules, Yoneda extensions, and derived categories in the context of extending modules.
Transformer: Single and Three-PhaseCovers the basics of transformers, including single-phase and three-phase configurations, levels of electricity network, and special transformers.