A thermocouple is to be used to measure a temperature of 2800°F. Which thermocouples are not used to measure this temperature?

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Thermocouple

A thermocouple is a temperature measurement device. It includes diverse metal wires which are joined collectively to form a joint. At the same time as the junction is hot or cold, a small voltage is generated inside the measuring thermocouple electrical circuit, which corresponds to the temperature.