Three identical rods of length 1 m each, having cross-sectional area of `1cm^2` each and made of aluminium, copper and steel, respectively, are maintained at temperatures of `12^@C`,`4^@C` and `50^@C`, respectively, at their separate ends. Find the teperature of their common junction.
`[K_(Cu)=400 W//m-K,K_(Al)=200 W//m-K,K_("steel")=50 W//m-K]`

Three copper rods and three steel rods each of length l = 10 cm and area of cross-section 1cm^(2) are connected as shown If ends A and E are maintained at temperatures 125^(@)C and 0^(@)C respectively, calculate the amount of heat flowing per second from the hot of cold function. [K_(Cu) = 400 W//m-K, K_(steel) = 50 W//m-K]

Cylinder copper rod of length 1m and a cylinder steel rod of length 1.5m are joined together end to end. The cross sectional area of eac rod is 3.14cm . The free ends of steel rod and copper rods are maintained at 0^(@)C and 100^(@)C respectively. The surfaces of rods are thermally insulated. Find the temperature of copper steel junction. (Given thermal conductivity of steel =46J//m-s.^(@)C and the thermal conductivity of copper =386J//m-s.^(@)C )

A body of length l m having cross-sectional area 0.75 m^2 conducts heat 6000 J s^-1 . Then find the temperature difference if K=200 J m^-1 K^-1 .

A bar of copper of length 75 cm and a bar of steel of length 125 cm are joined together end to end . Both are of circular cross - section with diameter 2 cm . The free ends of the copper and steel bars are maintained at 100^(@)C and 0^(@)C respectively . The surface of the bars are thermally insulted . What is the temperature of the copper - steel junction ? What is the heat transmitted per unit time across the junction ? Thermal conductivty of copper 9.2 xx 10^(-2) k cal m^(-1) ""^(@)C^(-1)s^(-1) and that of steel is 1.1 xx 10^(-2)k cal m^(-1)s^(-1) (@)C^(-1) .

A rod of length 1 m having cross-sectional area 0.75m^(2) conducts heat at 6000Js^(-1) . Then the temperature difference acorss the rod is, if K=200Wm^(-1)K^(-1)

+2.0 -0.0 An engineer joined a rod in which 50 cm is copper and 100 cm is steel from end to end together. Both have the circular cross-section with diameter 3 cm. If the free end of copper and steel are maintained at the temperature 100°C and 0°C respectively. Determine the temperature of the copper-steel junction. (Assume the thermal conductivity of copper and steel are 386 J/m - 5-°C. 46 J/m - 5-°C respectively) 50 cm 100 cm 100°C Copper Steel 0°C

A rod of length 1 m having cross-sectionalarea 0.75 m^(2) ' conducts heat at 6000 Js^(-1) . Then the temperature difference acorss the rod is, if K=200 W m^(-1) K^(-1)