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NEET2005PhysicsThermal Properties of MatterActual

The temperature of inversion of a thermocouple is 620^ C and the neutral temperature is 300^ C . What is the temperature of cold junction?

Options

  1. A320^
  2. B20^ C
  3. C-20^ C
  4. D40^ C

Correct answer

C. -20^ C

Step-by-step solution

T₁=20^ C , T_n=300^ C array l T_n= T₁+T_C 2 or 600 =620+T_C T_C =-20^ C array

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