Question
Download Solution PDFWhat happens when heat is applied to the joined ends of wires of thermocouple?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe thermocouple is an electrical device containing junctions of two dissimilar metal joints. It is used as temperature sensors.
It works on the principle of the Seebeck effect.
Seebeck Effect:
- When two wires composed of dissimilar metals are joined at both ends and one of the ends is heated, there is a continuous current that flows in the thermoelectric circuit due to the generation of a voltage difference between them.
- This potential difference is used to measure temperatures.
- Seebeck effect is the converse of the Peltier effect.
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