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(C) In a thermocouple,the neutral temperature $(T_n)$ is a characteristic property of the materials used for the two junctions. It is defined as the t

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remains same

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(C) In a thermocouple,the neutral temperature $(T_n)$ is a characteristic property of the materials used for the two junctions. It is defined as the temperature of the hot junction at which the thermo-electromotive force $(EMF)$ becomes maximum and the thermoelectric power becomes zero. The neutral temperature depends only on the materials of the thermocouple and is independent of the temperature of the cold junction $(T_c)$. Therefore,if the temperature of the cold junction decreases,the neutral temperature remains the same.

If the temperature of the cold junction decreases,then the neutral temperature

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