A cold-junction:
A)opposes measured temperature.
B)can have an unpredictable effect on the thermocouple effect.
C)has a value that depends on ambient temperature.
D)all of the above.

Question

Quizplus · Accepted Answer

The cold-junction is the reference junction of a thermocouple. The measured temperature is the difference between the temperature of the hot junction and the cold junction. The cold-junction temperature can have an unpredictable effect on the thermocouple effect, as it can change the Seebeck coefficient of the thermocouple. The cold-junction temperature also depends on the ambient temperature.

A Cold-Junction