Stage 4: Measurement and Tools

Accurate measurement is the bridge between theory and practice. In this stage, you’ll learn the language of electrical measurement — volts, amps, ohms, and watts — and how these units connect through Ohm’s Law and the Power Law.

You’ll get hands-on with the multimeter, the electrician’s most essential diagnostic tool. Learn how to measure voltage safely in parallel, understand the difference between AC and DC modes, and discover when and how to measure current and resistance.

By the end of this stage, you’ll be able to read electrical ratings on outlets, appliances, and nameplates — and understand what those numbers mean for safety and circuit sizing. These are skills you’ll use every single day in electrical work.