Electrical theory provides the foundation for understanding what happens inside a circuit. A Certificate III Electrician course introduces students to different electrical principles and circuit configurations. They can learn about single-path and multiple-path circuits, direct current machines, magnetic devices and low-voltage alternating current circuits. Having this knowledge can make practical tasks easier to understand because students can connect what they see in an installation with the underlying electrical principles. AITE’s UEE30820 course includes several theory-based units that help learners develop a stronger understanding of how electrical systems behave and how faults can be investigated.