Carbon resistors are a type of resistance component used in electrical and electronic circuits to provide resistance to the flow of electricity, generally as a way to regulate current or voltage
What are carbon resistors used for?
For this reason, the carbon composition resistor is still used in many applications today. Applications include the protection of circuits (surge or discharge protection), current limiting, high voltage power supplies, high power or strobe lighting, and welding. An example of an application is a medical defibrillator.