Conduct your own electronics experiments and understand them. At the end of each chapter, you will find summaries, questions, and tasks, complemented by numerous colorful illustrations. Batteries, switches, lamps, motors, and LEDs are part of our everyday lives. In this book, Florian Schäffer provides you with technical background knowledge and practical physics that guide you in experimenting with, building, and measuring circuits. The projects include a lemon battery, a Morse switch, a dimmer, a light barrier, a lie detector, a skill game, a flower watering machine, and much more. All experiments are described in detail and richly illustrated, making them easy to replicate. You will learn what current and voltage actually are, enabling you to decode professional circuit diagrams and develop your own experiments. Important electronics mnemonics, simple formulas, and key circuit symbols are also included.