Electrical Basics for Beginners

Every electrical problem comes back to four numbers: voltage, current, resistance, power. Ohm's Law ties three of them together. This lesson is the foundation — if you can't read these, you can't troubleshoot anything.

Every wire in a building traces back to a panel. This lesson explains how breakers work, why GFCIs and AFCIs exist, and how to read a residential service panel without dying.

Pick the wrong wire and you start a fire. This lesson covers AWG sizes, ampacity tables, voltage drop, and the conduit/cable types every electrician picks from daily.

Everyday residential work is outlets and switches. This lesson covers how to wire them correctly, what NEC code requires for spacing and protection, and the troubleshooting flowchart for a dead outlet.