In a thermocouple, current flows from the metal occurring earlier in the thermoelectric series to the metal occurring later in the series through cold junction. Then why in a copper-iron thermocouple, current flows from copper to iron through hot junction?
In a thermocouple, current flows from the metal occurring earlier in the thermoelectric series to the metal occurring later in the series through cold junction. Then why in a copper-iron thermocouple, current flows from copper to iron through hot junction?