what is thermocouple and what is thermo emf?

what is thermocouple and what is thermo emf?


1 Answers

Vasantha Kumari
askIITians Faculty 38 Points
9 years ago
A thermocouple is a simple arrangement of two wires joined and they are connected to a high resistance millivoltmeter (Refer image given) . Thermocouples are superior to other thermometers as they can measure temperatures that fluctuate spontaneously. In the arrangement shown we see that the cold junction acts as a reference junction, while the hot junction is used to measure temperature. The EMF(E) developed is the thermoemf as given: Thanks & Regards, Vasantha Sivaraj, askIITians faculty 181-947_Thermocouple_1.JPG

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