A HEAT SENSITIVE RESISTOR MADE OF A SEMICONDUCTOR IS CALLED

• A. thermometer
• B. thermostat
• C. thermistor ✓
• D.  thermopile

Thermistors are electronic components that exhibit a large change in resistance with a small change in temperature. They are commonly used in various applications such as temperature sensing, temperature compensation, and overcurrent protection due to their high sensitivity to temperature changes.

Thermistors are made of semiconductor materials such as metal oxides like manganese, nickel, cobalt, copper, and iron. These materials exhibit a negative temperature coefficient (NTC) or positive temperature coefficient (PTC) behavior depending on the type of material used. NTC thermistors have a decrease in resistance with an increase in temperature, while PTC thermistors have an increase in resistance with an increase in temperature.

Thermistors are widely used in industries such as automotive, medical devices, consumer electronics, and HVAC systems due to their accuracy, reliability, and fast response time compared to other types of temperature sensors.