Free online courseBasic electronics

Course Description

Strengthen your electrician toolkit by learning how electronics really works, from the first principles of electricity to the practical habits used to analyze circuits confidently. This free online course is designed for beginners who want clear, visual explanations and a solid foundation that transfers directly to troubleshooting, installation decisions, and safe day-to-day work around electrical and electronic systems.

You will connect the dots between voltage, current, resistance, power, and energy so diagrams stop feeling abstract and start becoming predictable. You will learn how AC and DC behave differently, why phase matters, and how single-phase and three-phase power affect real equipment. With these concepts in place, you will be able to reason about common circuit behavior instead of relying on memorized rules.

Along the way, you will build practical understanding of essential components such as resistors, potentiometers, LEDs, diodes, semiconductors, and transformers. You will also gain the intuition to choose values and configurations appropriately, recognize how components dissipate power, and anticipate what changes when parts are placed in series versus parallel. These skills are especially useful when diagnosing issues like dim lighting, incorrect voltage levels, unexpected heat, or component failure.

Measurement and verification are central to professional work, so the course also helps you become comfortable with everyday tools. You will learn what to check with a multimeter and how an oscilloscope can reveal timing, ripple, and signal stability when a simple voltage reading is not enough. You will also practice applying core laws used across electronics, including Ohm’s Law and Kirchhoff’s circuit laws, to methodically solve problems and validate your conclusions.

To bridge learning with modern workflows, you will be introduced to circuit simulation for quick testing and better intuition before touching hardware. By the end, you will be better equipped to understand datasheet values, communicate clearly with other technicians, and approach electronics tasks with a structured, safety-minded mindset that supports career growth in electrical maintenance, automation, and service work.