a thermocouple consists of two wires made of dissimilar metals that are joine logether to form an electrical circuit. a thermal electromotive force (emf) e i generated when the two junctions are at different temperatures. when one jund tion is held at the ice point and the other is at a celsius temperature of t, th thermometric function is given by where is in millivolts. calculate the constants a and b for a thermocouple read ing 60 mv at 200° c and 40 mv at 400pc. what temperature corresponds to reading of 30 mv?
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