The figure shows the face and interface temperature of a composite slab containing of four layers of two materials having identical thickness. Under steady state condition, find the value of temperature `theta`.

The figure shows the face and interface temperature of a composite slab containing of four layers of three materials having indentical thickness. Under steady state condition, find the value of temperture theta .

The figure shows the face and interface temperatures of a composite slab consisting of four materials, of identical thickness, through which the heat transfer is steady. Rank the materials according to their thermal conductivities, greatest first.

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. Temperatures on the opposite faces of composite slab are T_(1) and T_(2) where T_(2)gtT_(1) , as shown in fig. what is the rate of flow of heat through the slab in a steady state?

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. Temperatures on the opposite faces of composite slab are T_(1) and T_(2) where T_(2)gtT_(1) , as shown in fig. what is the rate of flow of heat through the slab in a steady state?

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. Temperatures on the opposite faces of composite slab are T_(1) and T_(2) where T_(2)gtT_(1) , as shown in fig. what is the rate of flow of heat through the slab in a steady state?

Figure shows the cross section of a wall made of white pine of thickness L_(a) and brick of thickness L_(d) = = 2.0 L_(a) , sandwiching two layers of unknonw material with identical thicknesses and thermal conductivities. The thermal conductivity of the pine is k_(a) and that of the brick is k_(d) ( = 5.0k_(a)) . The face area A of the wall is unknown. Thermal conduction through the wall has reached the steady state, the only known interface temperatures are T_(1) = 25^(@)C, T_(2) = 20^(@)C , and T_(5 ) = - 10^(@)C . What is interface temperature T_(4) ?

A hollow and a solid sphere of same material and identical outer surface under identical condition are heated to the same temperature at the same time (both have same e, a):

STATEMENT-1: The thermal conductivity of a rectangular slab of a material can be defined only under steady-state conditions, i.e, when the temperatures of the end faces do not changes with time. STATEMENT-2: The rate of conduction of heat through a reactangular slab is proportional to the difference in temperature between its end faces.

A slab consists of two layers of different materials of the same thickness and having thermal conductivities K_(1) and K_(2) . The equivalent thermal conductivity of the slab is

A slab consists of two layers of different materials of the same thickness and having thermal conductivities K_(1) and K_(2) . The equivalent thermal conductivity of the slab is