In fig. 11.13 two metal bars of thickness `x_1 and x_2` and coefficient of thermal conductivities `K_1 and K_2`, placed end to end. What is the coefficient of thermal conductivity of a uniform slab of thickness `x_1 + x_2` whose conductivity is the same as that of the system of two bars ? Assume that there is no heat loss from the lateral sides.
Two rods of length l_(1) and l_(2) and coefficients of thermal conductivities k_(1) and K_(2) are kept touching each other. Both have the same area of cross-section. The equivalent of thermal conductivity is
Two rods of length d_(1) and d_(2) and coefficients of thermal conductivites K_(1) and K_(2) are kept touching each other. Both have the same area of cross-section. The equivalent thermal conductivity.
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
IF two metallic plates of equal thickness and thermal conductivities K_(1) and K_(2) are put together face to face anda common plate is constructed, then the equivalent thermal conductivity of this plate will be
A composite slab is made of two parallel layers of two different materials of thermal conductivities K_1 and K_2 are of same thickness. Show that the equivalent thermal conductivity of the slab is (2K_1 K_2)/( K_1 + K_2)
Three rods of same dimension are joined in series having thermal conductivity k_1 , k_2 and k_3 . The equivalent thermal conductivity is
Two bar of identical dimensions are kept as shown in figure. If K_1 and K_2 are their coefficients of thermal conductivities, then equivalent K
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
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
A composite slab is prepared by pasting two plates of thickness L_(1) and L_(2) and thermal conductivities K_(1) and K_(2) . The slab have equal cross-sectional area. Find the equivalent conductivity of the composite slab.
ICSE-THERMAL CONDUCTION-SELECTED PROBLEMS (Taken from the Previous Years ISC, AISSCE, HSSCE various States. Boards Roorke Qns & NCERT text) FROM EXPERIMENT TO DETERMINE K
