Question

is current is produced or not in the thermocouples due to their junction temperature ???​

Answer 1

Answer:

Generally, the voltage is in the microvolt range and care must be taken to obtain a usable measurement. Although very little current flows, power can be generated by a single thermocouple junction. Power generation using multiple thermocouples, as in a thermopile, is common.

Answer 2

Temperature of water is sensed by a thermocouple that produces a direct-current (DC) milliVoltage output (Smoot and Blakey, 1966). A positive but nonlinear relation exists between the output voltage of the thermocouple and temperature. Thermocouples were the first type of temperature probe or sensor.