Free online courseFundamentals of Electric Circuits

Course Description

Strengthen the electrical skills that matter on the job by learning how circuits behave, how to analyze them confidently, and how to predict real outcomes before you ever touch a tool. This free online course is designed for anyone aiming to work as an electrician, technician, or hands-on problem solver who wants to move beyond rules of thumb and understand the why behind current, voltage, and power in practical networks.

You will develop a clear mathematical view of electric current and the relationships that govern circuits, then translate that understanding into reliable methods for solving networks with resistors, sources, and combinations that appear in everyday installations and equipment. As you progress, you will practice the reasoning used by professionals to set up correct circuit equations, reduce complex networks into simpler equivalents, and verify results logically instead of guessing. Along the way, you will gain comfort with essential analysis techniques, including nodal reasoning and superposition, and you will learn how to interpret what turning off sources actually means when isolating effects in a circuit.

The course also helps you build intuition for equivalent circuits and measurement-ready models such as Thevenin form, making it easier to diagnose faults, estimate load behavior, and choose components wisely. You will connect that foundation to the way capacitors and inductors influence circuit behavior over time, including natural responses in RC and RLC circuits and the conditions that distinguish overdamped, critically damped, and underdamped behavior. Finally, you will step into sinusoidal steady-state concepts and understand how angular frequency shapes waveforms in AC analysis—key for working with power systems, filters, and signal-driven devices.

With short videos and targeted exercises, you will reinforce each concept immediately and build the confidence to approach circuit diagrams systematically. By the end, you will be better prepared to interpret schematics, communicate using standard electrical terms, and apply core circuit fundamentals to real-world electrical work.