Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit ?
Correct answer: B. Peltier effect
- A. Seebeck effect
- B. Peltier effect
- C. Joule heating effect
- D. Thomson effect
Explanation
The Peltier effect is the absorption or liberation of heat at a junction when current passes through it. Seebeck effect concerns emf produced by a temperature difference, while Thomson effect occurs along a single conductor with a temperature gradient.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Process Control and Instrumentation
254 free Process Control and Instrumentation MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Process Control and Instrumentation questions
______________ is undesirable in thermocouples used in industries ?
Which is the most suitable instrument for measuring pressure below 3 microns ?
Which of the following controllers has maximum offset ?
Polarisation of light forms the working principle of a______________?
The transfer function for a PID controller is (where, η i is the integral (reset) time and ηD is the derivative time.) ?
Gas analysis is commonly done using the___________________?