Question

Which of the following is the output of a thermocouple?

(a) Alternating current

(b) Direct current

(c) A.C. voltage

(d) D.C. voltage

The question was asked in an online quiz.

This intriguing question originated from Stability of Nonlinear System topic in section Nonlinear Systems of Control Systems

Answer 1

Correct option is (d) D.C. voltage

The best explanation: Thermocouple is the instrument that has two different metals with different temperatures and the difference in temperature is converted into the potential difference and gives output in D.C. Voltage.