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Resistors are passive electrical components with two terminals–designed to control the specific amount of electric current flow in multiple electronic circuits–by introducing resistance. They are fundamental components in electronic devices and complex computer systems and come with different resistance and tolerance values. Resistors also come with a power rating, indicating the maximum amount of power they can dissipate without overheating. A resistor is significant for designing circuits with desired operating characteristics. Resistors are usually colour-coded for easy identification of resistance value and come with a different resistor symbol, depending on the circuit diagram and types.
The primary function of a resistor is to provide a specific amount of electrical resistance, typically measured in ohms (Ω). They are also used for a variety of purposes, including voltage division, current limiting, signal conditioning, impedance matching, current measuring, and terminating transmission lines.
Resistors are electronic components that serve multiple purposes. Buying these cost-effective resistors allows users to tailor and optimise electronic circuits, ensuring proper functionality and performance. Resistors are indispensable components in electronics, providing essential control and optimisation for various applications.
There are various types of resistors, including:
Other Common Resistor Types Include:
Resistors are widely used in various environments and applications, including: