Heat TransferHard

Question

The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K and thickness x and 4x respectively are T2 and T1(T2 > T1). The rate of heat transfer throgh the slab, in a steady state is f, with f equal to : -
       

Options

A.1
B.1/2
C.2/3
D.1/3

Solution

Let temp. of interface be T
then

⇒ f =

Create a free account to view solution

View Solution Free
Topic: Heat Transfer·Practice all Heat Transfer questions

More Heat Transfer Questions

A solid cube and sphere are made of same substance and both have same surface area. If the temperature of both bodies 12...A sphere a cube and a thin circular plate all made of same substance and all have same mass. These are heated to 200oC a...A substance when at high temperature emits wave lenght λ1, λ2, λ3, and λ4 only when this substance i...In which process, the rate of transfer of heat is maximum : -...In a solid metal sphere there is a spherical cavity if solid is heated then volume of cavity...