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AP EAMCET2011PhysicsElectromagnetic Induction

The thermo emf of a hypothetical thermocouple varies with the temperature of hot junction as E=a +b ^2 in volts, where the ratio a / b is 700^ C . If the cold junction is kept at 0^ C , then the neutral temperature is

Options

  1. A700^ C
  2. B1400^ C
  3. C390^ C
  4. DNone of these

Correct answer

D. None of these

Step-by-step solution

Given, E=a +b ^2 aligned p & = d E d = d d (a +b ^2 ) & =a+2 b aligned At =T_n, p=0 T_n=- a 2 b =-350^ C No correct option is given.

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