Home
Class 12
PHYSICS
As the temperature of hot junction of a ...

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

A

Increases uniformly at constant rate

B

Increases slowly in the beginning and more rapidly at higher temperatures

C

Increases more rapidly in the beginning but less rapidly at higher temperatures

D

In minimum at neutral temperature

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Heating Effect of Current|2 Videos
  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Chemical Effect Current|1 Videos
  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos
  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

Similar Questions

Explore conceptually related problems

As the temperature of hot junction increases, the thermo e.m.f.

Assertion: When temperature of cold junction of a thermocouple is lowered, the value of neutral temperature of this thermo couple is raised. Reason: When the difference of temperature of two junction is raised. More thermo emf is produced.

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.

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

For a thermocouple, the temperature of inversion is that temperature at which thermo e.m.f. is

The temperature of the cold junction of thermo-couple is 0^(@)C and the temperature of hot junction is T^(@)C . The e.m.f . is E=16T-0.04 T^(2)mu volts. The temperature of inversion is

In a thermocouple the temperature of cold junction is 20^(@)C , while the temperature of inversion is 520^(@) C. At what temperature is the thermo emf maximum?

Above neutral temperature, thermo e.m.f. in a thermocouple

For a given thermocouple, the thermo e.m.f. can be