Question:
The following relates the absorption and evolution of heat at the junctions of a thermocouple to the current flow in the circuit
The following relates the absorption and evolution of heat at the junctions of a thermocouple to the current flow in the circuit
Show Hint
Peltier effect is heat absorption or heat evolution at junctions when current passes through a thermocouple circuit.
Updated On: May 27, 2026
- Seebeck effect
- Peltier effect
- Joule heating effect
- Thomson effect
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The Peltier effect is observed when electric current passes through the junction of two different conductors.
At one junction, heat may be absorbed.
At the other junction, heat may be evolved.
This effect depends on the direction of current flow.
Therefore, Peltier effect relates heat absorption and heat evolution at junctions to current flow.
Seebeck effect is the generation of emf due to temperature difference between two junctions.
Joule heating effect is heat generation due to electrical resistance.
Thomson effect is heat absorption or evolution in a single conductor with temperature gradient and current flow.
Therefore, the correct answer is:
\[
\text{Peltier effect}
\]
Was this answer helpful?
0
0
Top AP ECET Chemical Engg Chemical Engineering Questions
- Which mechanical property of a metal represents its ability to resist permanent deformation?
- The area under the stress-strain curve up to the fracture point represents:
- The Brinell hardness test measures hardness by:
- In a thermal equilibrium (phase) diagram of iron-carbon system, eutectoid point occurs at:
- Pig iron is produced in a:
View More Questions
Top AP ECET Chemical Engg Instrumentation Questions
- The ability of an instrument to give the same output for repeated measurements under identical conditions is called:
- The response of a first-order instrument to a step input is:
- Which input is commonly used to study the frequency response of an instrument?
- A thermocouple measures temperature based on the principle of:
- Vacuum pressure is usually measured using:
View More Questions
Top AP ECET Chemical Engg Questions
- Which mechanical property of a metal represents its ability to resist permanent deformation?
- The area under the stress-strain curve up to the fracture point represents:
- The Brinell hardness test measures hardness by:
- In a thermal equilibrium (phase) diagram of iron-carbon system, eutectoid point occurs at:
- Pig iron is produced in a:
View More Questions