If the cold junction of a thermocouple is kept at $0\,{\,^0}{\rm{C}}$ and the hot junction is kept at $T\,{\,^0}{\rm{C}}$, then the relation between neutral temperature $\left( {{T_n}} \right)$ and temperature of inversion $\left( {{T_i}} \right)$ is

JEE PHYSICS MCQ: CURRENT ELECTRICITY

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If the cold junction of a thermocouple is kept at

0\,{\,^0}\mathrm{C}

and the hot junction is kept at

T\,{\,^0}\mathrm{C}

, then the relation between neutral temperature

\left( {{T_n}} \right)

and temperature of inversion

\left( {{T_i}} \right)

View answer and explanation

Correct option: A

{T_n} = \frac{{{T_i}}}{2}

Option A is correct. The relation between neutral temperature (

T_n

) and temperature of inversion (

T_i

) when the cold junction is at 0°C is

T_n = \frac{T_i}{2}