This free online course covers the principles of electrical and electronic systems, their components, and their uses.

Electricity keeps homes, businesses, factories and modern technology running, yet many learners struggle to understand what happens inside a circuit or why electrical components behave differently. Would you like to read circuit diagrams, identify components and solve basic electrical problems with confidence? This electrical and electronic systems course gives you a practical foundation in basic electricity, circuit operation and electronic technology. It is ideal for learners who want clear explanations, useful technical knowledge and skills that support further study, workplace training or personal projects.

You will explore current, voltage, resistance, electrical conductivity, direct current, alternating current and Ohm’s Law. The course also explains conductors, insulators, series circuits, parallel circuits, electrical symbols and circuit diagrams. You will learn how to use ammeters, voltmeters, ohmmeters and multimeters, while understanding the functions of switches, relays and electric motors. Important safety topics include earthing, electric shock prevention, fuses, circuit breakers, isolators, earth-leakage units and correct plug wiring for safe and reliable operation.

The electronic systems section introduces resistors, capacitors, inductors, transformers, diodes, rectifiers and semiconductor materials. You will also learn resistor colour codes, component identification, basic testing and practical troubleshooting. These skills will help you analyse circuits, spot common faults and understand how electrical energy is controlled, stored, transferred and converted. By the end of the course, you will be able to interpret basic circuits and work with greater confidence. Enrol today and build practical, job-relevant skills in electrical systems, electronic components and circuit technology.