Heat and Thermal ExpansionHard
Question
The thermo e.m.f. E in volts of a certain thermocouple is found to very with temperature difference θ in oC between the two junctions according to the realtion
E = 30θ -
The neutral temperature for the thermo-couple will be
E = 30θ -
The neutral temperature for the thermo-couple will be
Options
A.450oC
B.400oC
C.225oC
D.30oC
Solution
A given E = 30θ - 
For natural temperature,
= 0 or 30 = 2 
⇒ θ =
= 225oC.
For natural temperature,
= 0 or 30 = 2 ⇒ θ =
= 225oC.Create a free account to view solution
View Solution FreeMore Heat and Thermal Expansion Questions
Temperature of black body is 3000K when black body colls, then change in wavelength ᐃλ = 9 micron correspondi...One end of a horizontal thick copper wire of length 2L and radius 2R is welded to an end of another horizontal thin copp...The following four wires are made of the same material. Which of these will have the largest extension when the same ten...A ring consisting of two parts ADB and ACB of same conducting k carries an amount of heat H. The ADB part is now replace...Three rod of some dimensions are arranged as shown in the figure. They have thermal conductivities k1, k2 & k3. The poin...