Two parallel plates A and B are joined together to form a compound plate . The thicknesses of the
Channel: Doubtnut
Date: 2020-07-12

Two parallel plates A and B are joined together to form a compound plate . The thicknesses of the plate are `4.0cm` and `2.5cm` respectively and the area of cross section is `100cm^(2)` for each plate. The thermal conductivities are `K_(A)=200Wm^(-1)`^(@)C^(-1)` for the palte B. The outer surface of the plate A is maintainned at`100^(@)C`and the outer surface of the plate A is maintained at `100^(@)C` . and the outer surface of the plate B is maintained at 0^(@)C. Find (a) the rate of heat flow through any cross section, (b) the temperature at the interface and (c) the equivalent thermal conductivity of the compound plate.