If it is desired to determine the average temperature across a large duct, what thermocouple wiring technique can be used to generate an emf proportional to the average temperature?

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Accepted Answer

Multiple thermocouples can be used if they are wired in parallel, where the sum of the individual voltages is divided by the number of thermocouples.

Answer

Multiple thermocouples can be used if they are wired series-opposing, where the sum of the individual voltages is divided by the number of thermocouples.

Answer

Multiple thermocouples can be used if they are wired series-aiding, where the sum of the individual voltages is divided by the number of thermocouples.

Answer

Only one thermocouple can be used, and the hot junction must be strategically located to get an effective average temperature.

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