Question:
A thermocouple works on the Principle of
A thermocouple works on the Principle of
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Thermocouples work on Seebeck effect, where temperature difference produces an emf.
Updated On: May 7, 2026
- Hall effect
- Peltier effect
- Seebeck effect
- Ferroelectric effect
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The Correct Option is C
Solution and Explanation
Concept:
A thermocouple is a temperature measuring device based on the generation of voltage due to temperature difference between two junctions.
Step 1: A thermocouple is made by joining two dissimilar metals.
Step 2: When the two junctions are kept at different temperatures, an emf is produced.
Step 3: This phenomenon is called Seebeck effect.
Step 4: The generated emf is used to measure temperature. Therefore, a thermocouple works on: \[ \boxed{\text{Seebeck effect}} \]
Step 1: A thermocouple is made by joining two dissimilar metals.
Step 2: When the two junctions are kept at different temperatures, an emf is produced.
Step 3: This phenomenon is called Seebeck effect.
Step 4: The generated emf is used to measure temperature. Therefore, a thermocouple works on: \[ \boxed{\text{Seebeck effect}} \]
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