A composite slab is prepared by pasting two plates of thickness `L_(1)` and `L_(2)` and thermal conductivites `K_(1)` and `K_(2)` . The slab have equal cross-sectional area. Find the equivalent conductivity of the composite slab.

If two metallic plates of equal thickness and thermal conductivities K_(1) and K_(2) are put together face to face and a common plate is constructed, then the equivalent thermal conductivity of this plate will be

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 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

Two rods of length l and 2l thermal conductivities 2K and K are connected end to end. If cross sectional areas of two rods are eual, then equivalent thermal conductivity of the system is .

If two metallic plates of equal thickness and thermal conductivities K_1 and K_2 ​are put together face to face and a common plate is constructed, then the equivalent thermal conductivity of this plate will be

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.

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 compound slab is made up two slabs. If thermal conductivity of their material are k_(1) and k_(2) respectively of their cross-sectional areas are the same, the equivalent thermal conductivity of the slab is . . . . . (consider series connection)

A slab consists of two parallel layers of two different-materials of the same thickness, having thermal conductivities K_1 and K_2 . What is the equivalent thermal conductivity of the slab?