What type of resistors are typically used in circuits with power requirements exceeding 2 watts?

Wire-wound resistors are designed to handle higher power ratings, often exceeding 2 watts. This type of resistor is made by winding a thin wire, usually made of a material like nichrome, around a ceramic, plastic, or fiberglass core. The construction allows for better heat dissipation, making wire-wound resistors capable of managing the significant heat generated when higher power levels are applied.

These resistors are also known for their low temperature coefficient and high precision, which enhances their stability and reliability under varying conditions. Because they can efficiently dissipate heat, wire-wound resistors are commonly found in applications where power exceeds 2 watts, such as in power amplifiers and power supply circuits. Other types of resistors, like carbon composition or film resistors, typically have lower power ratings and may not cope as effectively with the heat generated at higher wattage levels.