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A thermocouple is formed from two different metals, joined at two point in such a way that a small voltage is produced when the two junctions are at different temperatures. In a particular iron- constantan thermocouple, with one junction held at 0°C , the output voltage varies linearly from 0 to 28.0 mV as the temperature of the other junction is raised from 0 to 510°C. Find the temperature of the variable junction when the thermocouple output is 10.2 mV.

A thermocouple is formed from two different metals, joined at two point in such a way that a small voltage is produced when the two junctions are at different temperatures. In a particular iron- constantan thermocouple, with one junction held at 0°C , the output voltage varies linearly from 0 to 28.0 mV as the temperature of the other junction is raised from 0 to 510°C. Find the temperature of the variable junction when the thermocouple output is 10.2 mV.

Grade:upto college level

1 Answers

De Alba Venegas Bryan Salvador
28 Points
2 years ago
A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction. 
T = (510°C)/(0.028V)V, so T = (1.82x10⁴°C/V)(0.0102V) = 186°C

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