The thermos e m f of a thermocouple varies with temperature \theta of the hot junction as E=a \theta+b \theta^2 in volts where the ratio a \/ b is 700^{\circ} C. If the cold junction is kept at 0^{\circ} C, then the neutral temperature is [AIEEE 2004]

Correct Answer is : No neutral temperature is possible for this thermocouple.

No neutral temperature is possible for this thermocouple.

Current Electricity Part 1

Section: Physics

Question : 88 of 100

Marks: +1, -0

The thermos emf of a thermocouple varies with temperature θ of the hot junction as E=aθ+bθ2 in volts where the ratio a∕b is 700∘C. If the cold junction is kept at 0∘C, then the neutral temperature is

[AIEEE 2004]

1400∘C
350∘C
700∘C
No neutral temperature is possible for this thermocouple.

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