The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K, thickness x and 4x respectively, are T2 and T1 (T2>T1). Area of cross-section A is the same. The rate of heat transfer through the slab, in steady state, is F[A(T2−T1)Kx]. The value of F is (answer up to two decimal places)

The temperature of the two outer surfaces of a composite slab, consist

1.	The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K, thickness x and 4x respectively, are T2 and T1 (T2>T1). Area of cross-section A is the same. The rate of heat transfer through the slab, in steady state, is F[A(T2−T1)Kx]. The value of F is (answer up to two decimal places)
Answer» The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity $K$ and $2 K$ , thickness $x$ and $4 x$ respectively, are $T_{2}$ and $T_{1} (T_{2} > T_{1})$ . Area of cross-section $A$ is the same. The rate of heat transfer through the slab, in steady state, is $F [\frac{A (T_{2} - T_{1}) K}{x}]$ . The value of $F$ is (answer up to two decimal places)