AIPMT PRELIMS2007Physics-Thermodynamics

AIPMT PRELIMS 2007 Physics Thermocouples MCQ Question

Type: MCQ-conceptual-Medium-Class 11

If the cold junction of a thermo-couple is kept at 0°C and the hot junction is kept at TC\text{T}^\circ\text{C} then the relation between neutral temperature (Tn)(\text{T}_\text{n}) and temperature of inversion (Ti)(\text{T}_\text{i}) is

A

Tn=2Ti\text{T}_\text{n} = 2\text{T}_\text{i}

B

Tn=TiT\text{T}_\text{n} = \text{T}_\text{i} - \text{T}

C

Tn=Ti+T\text{T}_\text{n} = \text{T}_\text{i} + \text{T}

D

Tn=Ti/2\text{T}_\text{n} = \text{T}_\text{i} / 2

Correct Answer

Option D

Detailed Explanation

The neutral temperature is the average of the temperatures of the hot and cold junctions in a thermocouple.

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