The thermo emf of a hypothetical thermocouple varies with the temperature \\theta of 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

Correct Answer is : None of the above

no neutral temperature is possible for this thermocouple

AP EAMCET Engineering 2011 Solved Paper

Section: Physics

Question : 37 of 160

Marks: +1, -0

The thermo emf of a hypothetical thermocouple varies with the temperature θ of 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

700°C
1400°C
390°C
no neutral temperature is possible for this thermocouple
None of the above

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