56 A composite slab consists of two different materials

Last updated: 6/27/2023

56 A composite slab consists of two different materials having equal cross sectional area but lengths in the ratio 2 1 and thermal conductivity K and 3K respectively as shown in figure The equivalent thermal conductivity of slab is 1 3 9K 7 3K A K 2L 2 4 3K 3K 2 3K L