What Is an Electrical Resistor?
An electrical resistor is a component that controls current flow in circuits.
Its main function is to introduce resistance, thereby regulating current, voltage, and power levels. Made from materials like carbon or metal alloys, resistors impede electron movement when current passes, creating resistance. This process results in energy consumption and a voltage drop across the resistor.
A resistor’s key attribute is its resistance, measured in ohms (Ω). Higher resistance means more opposition to the current flow. Resistors are essential in various electronic circuits and devices for managing current and voltage.