Home
Class 12
PHYSICS
The rate of increase of thermo-emf with ...

The rate of increase of thermo-emf with temperature at the neutral temperature of a thermocouple

A

is positive

B

is zero

C

depends upon the choice of the two materials of the thermocouple

D

is negative

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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

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.

The true statement for thermo e.m.f . of a thermocouple

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

The thermo emf of a therocouple , one junction of which is kept at 0^(@)C , is given by varepsilon=at+bt^(2) where a and b constants of the thermocouple . Calculate the neutral temperature and peltier and Thomson coefficients.

The thermo e.m.f. E in volts of a certain thermocouple is found to vary with temperature difference q in .^(@)C between the two junctions according to the relation E=30 theta-(theta^(2))/(15) The neutral temperature for the thermo-couple will be:-

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

The temperature of cold junction and neutral temperature of a thermocouple are 15^(@)C and 280^(@)C respectively. The temperature of inversion is