Question

Which of the following is used to measure the thermal conductivity?

• A. RTD
• B. Thermocouple
• C. Strain gauge
• D. Thermistor

Hint:

Thermistors are sensitive to temperature changes and can be used in setups to measure thermal conductivity, although they are primarily known for temperature measurement.

Answer 1

The Correct Option is D

Thermal conductivity is a material property that quantifies the ability of a material to conduct heat. A thermistor is used to measure temperature changes, and it can be part of a system to measure thermal conductivity, especially in conjunction with other devices.
- RTDs (Resistance Temperature Detectors) and Thermocouples are primarily used for measuring temperature, not thermal conductivity.
- Strain gauges are used for measuring strain, not thermal conductivity.
Therefore, the correct answer is Thermistor, as it is commonly used in thermal conductivity measurements when used with specific arrangements.