Three rods of copper, brass and steel are welded togeher to from a Y -shaped structure. Area of cross-section of each rod `=4 cm^(2)`. End of copper rod is maintained at `100^(@)C` whereas the ends of brass and steel are at `0^(@)C` . Lengths of copper, brass and steel rods are 46, 13 and 12 cm respectively. The rods are thermally insulated from surroundings except at ends. Thermal conductivities of copper, brass and steel are `0.92, 0.26` and `0.12` CGS units respectively. Rate of heat flow through copper rod is

Three rods of copper, brass and steel are welded together to form a Y-shaped structure. Area of cross-section of each rod =4cm^2 . End of copper rod is maintained at 100^@C whereas ends of brass and steel are kept at O^@C . Lengths of the copper, brass and steel rods are 46, 13 and 12 cm respectively. The rods are thermally insulated from surroundings except at ends. Thermal conductivities of copper, brass and steel are 0.92, 0.26 and 0.12 CGS units respectively. Rate of heat flow through copper rod is

Three rods of Copper, Brass and Steel are welded together to from a Y shaped structure. Area of cross-section of each rod =4cm^2 . End of copper rod is maintained at 100^@C where as ends of brass and steel are kept at 0^@C . Lengths of the copper, brass and steel rods are 46, 13 and 12 cm respectively. The rods are thermally insulated from surroundings excepts at ends. Thermal conductivities of copper, brass and steel are 0.92, 0.26 and 0.12 CGS units respectively. Rate of heat flow through copper rod is :

Three rods of Copper, Brass and Steel are welded together to from a Y shaped structure. Area of cross-section of each rod =4cm^2 . End of copper rod is maintained at 100^@C where as ends of brass and steel are kept at 0^@C . Lengths of the copper, brass and steel rods are 46, 13 and 12 cm respectively. The rods are thermally insulated from surroundings excepts at ends. Thermal conductivities of copper, brass and steel are 0.92, 0.26 and 0.12 CGS units respectively. Rate of heat flow through copper rod is :

Three rods of Copper, Brass and Steel are welded together to from a Y shaped structure. Area of cross-section of each rod =4cm^2 . End of copper rod is maintained at 100^@C where as ends of brass and steel are kept at 0^@C . Lengths of the copper, brass and steel rods are 46, 13 and 12 cm respectively. The rods are thermally insulated from surroundings excepts at ends. Thermal cunductivities of copper, brass and steel are 0.92, 0.26 and 0.12 CGS units respectively. Rate of heat flow through copper rod is :

Three rods of Copper Branss and Steel are welded together to form a Y-shaped structure Area of cross -section of each rod is 4cm^(-2) End of copper rod is maintained at 100^(@)C , where as ends of brass, steel are kept at 0^(@)C Lenths of the copper brass and steel rods are 46,13 andd 12cms respectively The rods are thermally insulated from surroundings except at ends Thermal conductivities of copper, brass and steel are 0.92,0.26 and 0.12 CGS units respectively Rate of heat flow through coper rod is .

Three rods of copper, brass and steel are joined together to form T shape as shown in figure. The cross sectional area of each rod is 4cm^(2) the end of copper rod is maintained at 10^(@)C and the ends of brass and steel rods at 0^(@)C assume there is no loss of heat to surrounding. What is temperature of junction point A in .^(@)C

Three rods of copper, brass and steel are welded together to form a Y -shaped structure. The cross-sectional area of each rod is 4 cm^2 . The end of copper rod is maintained at 100^@C and the ends of the brass and steel rods at 80^@C and 60^@C respectively. Assume that there is no loss of heat from the surfaces of the rods. The lengths of rods are : copper 46 cm, brass 13 cm and steel 12 cm. (a) What is the temperature of the junction point? (b) What is the heat current in the copper rod? K(copper) = 0.92, K (steel) = 0.12 and K(brass) = 0.26 cal//cm-s^@C .

Three rods of copper, brass and steel are welded together to form a Y -shaped structure. The cross-sectional area of each rod is 4 cm^2 . The end of copper rod is maintained at 100^@C and the ends of the brass and steel rods at 80^@C and 60^@C respectively. Assume that there is no loss of heat from the surfaces of the rods. The lengths of rods are : copper 46 cm, brass 13 cm and steel 12 cm. (a) What is the temperature of the junction point? (b) What is the heat current in the copper rod? K(copper) = 0.92, K (steel) = 0.12 and K(brass) = 0.26 cal//cm-s^@C .