The rods of identical cross section and lengths are made of

Last updated: 6/7/2023

The rods of identical cross section and lengths are made of three different materials of thermal conductivity K K and K3 respectively They are joined together at their ends to make a long rod see figure One end ofr the long rod is maintained at 100 C and the other at 0 C see figure If the joints of the rod are at 70 C and 20 C in steady state and there is no loss of energy from the surface of the rod the correct relationship between K K and K3 is 100 C K K K3 0 C