Heat and Thermal ExpansionMedium
Question
A ring consisting of two parts ADB and ACB of same conducting k carries an amount of heat H. The ADB part is now replaced with another metal keeping the temperatures T1 and T2 constant . The carried increase to 2H. What should be the conductivity of the new ADB part ? Give 
= 3
= 3Options
A.
k
kB.2 k
C.
k
kD.3 k
Solution
H = 
and 2H = 
(where R & R’ are thermal resistances.)
⇒ k′ =
(k′ = cond. of ADB wire).
and 2H = (where R & R’ are thermal resistances.)
⇒ k′ =
(k′ = cond. of ADB wire).Create a free account to view solution
View Solution FreeMore Heat and Thermal Expansion Questions
The figure shows two thin rods, one made of aluminum [α = 23 × 10-6 (Co)-1] and the other of steel [α = 1...One mole of ideal gas undergoes a cyclic process ACBA as shown in figure. Process AC is adiabatic. The temperatures at A...An ideal monotonic gas undergoes a cycle ABCA as shown in the fig. The ratio of heat absorbed during AB to the work done...A gas takes part in two processes in which it is heated from the same initial state 1 to the same 1 to the same final te...A steel tape is placed around the earth at the equator when the temperature is 10oC. What will be the clearance between ...