Electronic circuits are pathways that allow electric current to flow, enabling various electronic devices to function. They consist of components like resistors, capacitors, and transistors, which work together to control the flow of electricity. These circuits can be simple, like those found in a flashlight, or complex, like those in computers. In electronic circuits, the arrangement of components determines how they operate. For example, a series circuit connects components end-to-end, while a parallel circuit connects them across common points. Understanding these basic configurations is essential for designing and troubleshooting electronic systems.