The subsequent problems deal with the figure and table below
For a Type J (Iron-Constantan) thermocouple configuration (as shown above) with a 0°C reference (Tref):
where Vemf is the voltage difference produced by the junction pair (Vemf = VA ? VB in the figure).Assume that nodes A and B are at the same temperature, unless indicated otherwise. Assume that the op amp is ideal.If we measure a 20°C input with a 10°C reference, the voltage between nodes A and B would be?
A. 1.526 mV
B. 0.507 mV
C. 0 mV
D. 1.019 mV
E. 0.512 mV
Answer: E
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