Q$\backslash 0-1$:

A plane wall is a composite of three materials $A.B$ and C$.$ The wall material A has a

heat generation at the rate of $2{10}^{6}W{m}^3.$ The thermal conductivity of the material A

is $190\frac{W}{m}=c$ and its thickness is $50$ mm $.$ The wall materials of B and $C$ do not hase

the theat gencration and their thermal conductivities and thicknesses are $K_0=150$

Whom $c_c{K}_c=50\frac{W}{m}-$ c and $L_s=30mm,L_L=15mm$ respectively. The inner

varfece of material A is well insulated while cuter wurface of the material C is coolod

by water steam at T$.=50C$ with consection coefficient of $2000Wi{m}^2-8$ Detern

$($i$)$ the temperatures of the insulated and the cooled surfacd $($ii$)$ Sietch the comperatier

distribution in the composite under steady$-$state condition.