Question
Download Solution PDFWhich of the following has negative temperature coefficient?
This question was previously asked in
VSSC (ISRO) Technician B: Electronic Mechanic Previous Year Paper (Held on 10 February 2019)
Answer (Detailed Solution Below)
Option 2 : Thermistor
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Detailed Solution
Download Solution PDF- Thermocouple has a constant temperature at one end and is used to measure temperature.
- Thermistor has a negative temperature coefficient, i.e. when the temperature increases the resistance will decrease.
- A strain gauge is a sensor whose resistance varies with applied force. It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured.
-
RTD stands for Resistance Temperature Detector. It has a positive value of the temperature coefficient.
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