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If the temperature of cold junction of t...

If the temperature of cold junction of thermocouple is lowered, then the neutral temperature

A

increases

B

decreases

C

remains constant

D

may increase or may decrease

Text Solution

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The correct Answer is:
C
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Assertion : When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermocouple is raised. Reason : When the difference of temperature of two junction is raised, more thermo e.m.f. is produced.

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As the temperature of hot junction of a thermo-couple is increased (while cold junction is at constant temperature), the thermo e.m.f .

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