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chromel-constantan thennocouple measuring the temperature of a fluid is
connected by mistake with copper-constantan extension leads (such that the
two constantan wires are connected together and the copper extension wire is
connected to the chrome! thermocouple wire). If the fluid temperature was actually
250°C. and the junction between the thennocouple and extension wires was at
80°C. what e.m.f. would be measured at the open ends of the extension wires
if the reference junction is maintained at 0°C? What fluid temperature would be
deduced from this (assuming that the connection mistake was not known about)?
(Hint: apply the law of intermediate metals for the thermocouple-extension lead
