The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K and thicknesses x and 4x, respectively are `T_(2)` and `T_(1)(T_(2)gtT_(1))`. The rate of heat of heat transfer through the slab, in ? steady state is `[(A(T_(2)-T_(1))/(x)]f`, with f equal to :-

The temperature of the two outer surfaces of a composite slab consisting of two materials having coefficient of thermal conductivity K and 2K and thickness x and 4x respectively are T_2 and T_1(T_2gtT_1) . The rate of heat transfer through the slab in steady state is ((AK(T_2 -T_1))/x)f . where, f is equal to .

The temperature of the two outer surfaces of a composite slab, consisting of two materails having coefficients of two materails having coefficients of termal conductivity K and 2K and thickness x and 4x, respectively, are T_2 and T_1(T_1gtT_1) . The rate of heat transfer through the slab, in a steady state is ((A(T_2-T_1)K)/2)f , with f equal to

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?

Consider a compound slab consisting of two different material having equal thickness and thermal conductivities K and 2K respectively. The equivalent thermal conductivity of the slab is

The two ends of a rod of length L and a uniform cross-sectional area A are kept at two temperature T_(1) and T_(2) (T_(1) gt T_(2)) . The rate of heat transfer. (dQ)/(dt) , through the rod in a steady state is given by

Two materials having coefficients of thermal conductivity ‘3 K’ and ‘K’ and thickness ‘d’ and ‘3 d’, respectively, are joined to form a slab as shown in the figure. The temperatures of the outer surfaces are theta_(2) and theta_(1) respectively, (theta_(2) gt theta_(1)) The temperature at the interface is:

Three rods of same cross-section but different length and conductivity are joined in series . If the temperature of the two extreme ends are T_(1) and T_(2) (T_(1)gtT_(2)) find the rate of heat transfer H.