Basic Electronics and Theory - 005

Electronics is the language of radio. To build, operate, and troubleshoot equipment, every amateur operator needs to understand the basic laws and components that make circuits work. In this section, you’ll explore the foundations of electricity—power, voltage, current, resistance—and how they come together through Ohm’s Law and the power law. You’ll also discover how capacitors, inductors, transformers, resonance, and impedance shape signals, and how meters make these invisible quantities visible. This knowledge is the starting point for mastering all future radio theory.