Electronics is the branch of science that deals with controlling electricity. It involves the movement of electrons and uses electric and electronic circuits and systems to manage power and information. Electronics is important because it allows electricity to do work for us, which we use for many applications like communication, computers, industrial processes, medical devices, and more. If you study electronics, you can learn about fundamental concepts like voltage, current, resistance, and power, as well as components, circuits, and systems to control and apply these fundamentals.