In above diagram, a combined rod is formed by connecting two rods of length l_(1) and l_(2) respectively and thermal conductivity k_(1) and k_(2) respectively. Temperature of ends of rods are T_(1) and T_(2) constant, then find the temperature of their contact surface ?

In above diagram, a combined rod is formed by connecting two rods of

1.	In above diagram, a combined rod is formed by connecting two rods of length l_(1) and l_(2) respectively and thermal conductivity k_(1) and k_(2) respectively. Temperature of ends of rods are T_(1) and T_(2) constant, then find the temperature of their contact surface ?
Answer» SOLUTION :`T_(X)=(k_(1)l_(2)T_(1)+k_(2)l_(1)T_(2))/(k_(1)l_(2)+k_(2)l_(1))`