The thermal emf-temperature relationship of most thermocouples is_________________?
Correct answer: D. Parabolic
- A. Linear
- B. Square root
- C. Exponential
- D. Parabolic
Explanation
The emf produced by a thermocouple is nonlinear with temperature and is commonly represented by a polynomial, approximately parabolic over a limited range. It is therefore not a linear or exponential relationship.
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