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Thermocouple must provide ________(a) small thermo e.m.f(b) sufficient thermo e.m.f(c) no thermo e.m.f(d) infinite thermo e.m.fI had been asked this question during an interview for a job.Enquiry is from Thermoelectric Transducer topic in section Transducers of Electrical Measurements

Answer» CORRECT option is (b) SUFFICIENT thermo e.m.f

Explanation: A thermocouple must be ABLE to provide sufficient thermo e.m.f. This must be with RESPECT to each degree variation in the TEMPERATURE. It helps in detecting the temperature variation and in measurement.


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