resistor

A resistor is a basic electronic component that limits or controls the flow of electrical current in a circuit. It acts like a water valve, providing resistance to the movement of electrons, which helps protect other components and regulate voltage levels. Resistors are measured in ohms (Ω) and come in various sizes and resistance values suited for different applications. They are essential for ensuring devices operate safely and reliably by managing current flow, preventing overheating, and helping achieve desired circuit behavior.