A carbon film resistor is a type of electrical component used to limit the flow of electric current in a circuit. It is made by depositing a thin layer of carbon onto a ceramic substrate, which creates a resistive path. The resistance value can be adjusted by changing the thickness and length of the carbon film. These resistors are known for their stability and reliability in various applications. These resistors are commonly used in electronic devices, such as radios and televisions, due to their low cost and compact size. They are also preferred for their ability to handle moderate power levels. Overall, carbon film resistors play a crucial role in the functioning of many electronic circuits.