Collection
Electrical Systems
This collection covers electrical theory, safety codes, and wiring techniques. It provides the technical background needed to install, maintain, and fix electrical equipment in residential and commercial buildings.
Why we made this collection
After this collection, you'll be able to:
Calculate voltage, current, and resistance in DC and AC circuits to predict system performance
Apply National Electrical Code standards to select the correct wire sizes and materials for an installation
Interpret technical drawings and blueprints to plan electrical runs on a job site
Diagnose and repair faults in electric motors and their control circuits
Courses
Introduction to Electrical Systems
Learn how electrical systems actually work — from the physics of voltage and current to reading job-site drawings — and build the foundational knowledge every electrician needs before touching live equipment.
Electrical Theory and Circuits
Go beyond memorizing formulas and actually understand how electricity behaves — from DC circuit analysis and AC theory to transformers and power factor correction.
Wiring Methods, Materials, and Code
Learn how wire is sized, rated, and installed — and how the National Electrical Code governs every decision — so you can plan, verify, and talk through residential and commercial wiring with confidence.
Motors, Controls, and Troubleshooting
Learn how electric motors work, how to protect and control them, and how to diagnose what went wrong when they don't — the skills that separate a technician who can troubleshoot from one who can only replace parts.