11. The temperatures of the two outer surfaces of al composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K and thickness x and 4x, respectively, are T, and T, (T, > T). The rate of heat transfer through the slab, in a steady state is 1(2-7) - S, with f equal to . with fe 2K (c) 2/3 (b) 1/2 (d) 1/3

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 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 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 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 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 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?