Source: https://mokxi.com/learn/electrician-training-online Updated: 2026-11-11 Electrical track Electrician training # Electrician training online: the circuit skills, free Practice the electrical theory part of the trade: Ohm's law with a real meter, series and parallel, relays, rectifiers and the power-off checks, in a simulator. Free In your browser 4 courses, 36 lessons, about 18 hours Start free Volts, amps and ohms with a real meter See the course Overview ## How you will learn it Becoming a licensed electrician takes classroom hours, an apprenticeship and a state exam, and no website replaces those. What you can do online is get very good at the theory first, so the classroom is review and the job site makes sense on day one. These lessons cover the circuit skills the trade relies on, on a simulator where a mistake costs nothing: measuring volts, amps and ohms the right way, series and parallel loads, relays, rectifiers and the checks you make with the power off. Outcomes ## What you will learn - Use Ohm's law and power to predict a circuit, then check it with a meter. - Work out series and parallel circuits, for loads and for batteries. - Do continuity, resistance and diode checks with the power off. - Explain how a relay switches a bigger load and how a rectifier makes DC. Your route ## The courses and lessons to take Every lesson opens in the editor right away, signed in or not, and the simulator checks each step. - Step 1 · 7 lessons · 3 h ### Power and batteries Ohm's law with a real meter, then series and parallel. - Volts, amps and ohms with a real meter A bench supply, a 10 ohm resistor and a multimeter: what voltage, current and resistance are, Ohm's law in one line, and what a current limit does when the law asks for too much. - Batteries in series and parallel Two AA cells in series light a flashlight bulb, and two in parallel barely glow it: volts add in series, run time adds in parallel, and the rules for packing cells safely. - A voltage regulator: 9 V in, 5 V out A 7805 turns a 9 V battery into a steady 5 V: its three legs and two capacitors, the dropout when the battery runs down, the heat it makes, and an AMS1117 that needs far less headroom. Every lesson in the course - Step 2 · 20 lessons · 10 h ### Electronics basics The fundamentals behind every circuit. - Ohm's law: volts, amps and ohms One resistor across 5 V. Change the resistor and watch the current change, then pick a resistor for a current you want. The one equation behind every circuit. - Branches in parallel Two LED branches across the same supply. Each one sets its own current, the supply carries the total, and two resistors side by side come out smaller than either. - The transistor as a switch A tiny current into the base switches a big current through the collector. Switch an LED with a transistor and measure how much smaller the control current is. - From the wall to DC: a rectifier and a capacitor One diode blocks the negative half of an AC wave, and a big capacitor fills the gaps. Watch AC turn into smooth DC, and see what a small capacitor or a heavy load does to it. Every lesson in the course - Step 3 · 6 lessons · 2 h ### Debug like an engineer Meter technique and the power-off checks. - The multimeter: volts across, amps through Two meters on one LED circuit: a voltmeter across the LED and an ammeter in the loop. Why one goes across and the other goes in line, and how to check Ohm's law against real readings. - The power-off checks: ohms, continuity and diodes Three meters on a circuit with no supply at all: one reading a resistor, one beeping across a switch, one testing an LED. Why these checks need the power off, and what each one tells you. Every lesson in the course - Step 4 · 3 lessons · 3 h ### Build a smart home hub Relays switching a lamp and a fan, and why they are wired that way. - A dashboard that switches real things Serve a web page from the ESP32-C3 and use it to switch a lamp and a fan through relays, and to dim a porch light. Why a relay, and why it is wired the way it is. Every lesson in the course Keep going ## Guides and tools on the same subject Guide ### How to use a multimeter Open it Guide ### Arduino relay module Open it Simulator ### Series and parallel circuit simulator Open it Track ### Electrical track Current and voltage you can see, then transistors, op-amps, filters, power and PCBs. Every circuit runs in a real circuit simulator in your browser. See the whole track Questions ## Questions people ask Can I become an electrician online? Not entirely. Licensing needs an apprenticeship and an exam in your state. Online study is a strong way to learn the theory before or alongside that. Does this cover the National Electrical Code? No. These lessons teach circuit theory and measurement. Code requirements come from your apprenticeship and code classes. Is practicing on a simulator useful? Yes, for theory and measurement. You can make every mistake, such as measuring current across a supply, and see what it would do without any danger.