The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouple

The rate of increase of thermo e.m.f with temperature at the neutral temperature of a thermocouple:

Above neutral temperature , the thermo emf

Above neutral temperature, thermo e.m.f. in a thermocouple

Above neutral temperature, thermo e.m.f. in a thermocouple

Above neutral temperature, thermo e.m.f. in a thermocouple

Assertion : When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermocouple is raised. Reason : When the difference of temperature of two junction is raised, more thermo e.m.f. is produced.

Assertion: When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermo couple is raised. Reason: When the difference of temperature of two junction is raised. More thermo emf is produced.

Assertion: When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermo couple is raised. Reason: When the difference of temperature of two junction is raised. More thermo emf is produced.

Assertion: When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermo couple is raised. Reason: When the difference of temperature of two junction is raised. More thermo emf is produced.

Do all the thermocouples have a neutral temperature?