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Coefficient of thermal conductivity ....

Coefficient of thermal conductivity .

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A cylindrical metallic rod 0.5 m long conduct heat at the rate of 50 "Js"^(-1) when its ends are kept a 400^(@) C and 0^(@) C respectively. Coefficient of thermal conductivity of metal is 72 "Wm"^(-1) "K"^(-1) . What is the diameter of rod?

There are two identical vessels filled with equal amounts of ice. The vessels are of different metals., If the ice melts in the two vessels in 20 and 35 minutes respectively, the ratio of the coefficients of thermal conductivity of the two metals is

Two slabs A and B of equal surface area are placed one over the other such that their surfaces are completely in contact. The thickness of slab A is twice that of B . The coefficient of thermal conductivity of slab B is maintained at 25^(@)C . The temperature at the contact of their surface is

Two vessels of different materials are identical in size and wall-thickness. They are filled with equal quantities of ice at 0^(@)C . If the ice melts completely in 10 and 25 minutes respectively, compare the coefficients of thermal conductivity of the materials of the vessels.

Two vessels of different materials are identical in size and wall-thickness. They are filled with equal quantities of ice at 0^(@)C . If the ice melts completely in 10 and 25 minutes respectively, compare the coefficients of thermal conductivity of the materials of the vessels.

Two vessels of different materials are identical in size and wall-thickness. They are filled with equal quantities of ice at 0^(@)C . If the ice melts completely in 10 and 25 minutes respectively, compare the coefficients of thermal conductivity of the materials of the vessels.

There are two identical vessels filled with equal amounts of ice. The vessels are of different metals., If the ice melts in the two vessels in 20 and 35 minutes respectively, the ratio of the coefficients of thermal conductivity of the two metals is

Two metal cubes A and B of same size are arranged as shown in Figure. The extreme ends of the combination are maintened at the indicated temperatures. The arrangement is thermally insulted. The coefficients of thermal conductivity of A and B are 300W//m ^@C and 200 W//m^@C, respectively. After steady state is reached the temperature t of the interface will be ......

Two metal cubes A and B of same size are arranged as shown if Fig. The extreme ends of the combination are maintained at the identical temperatures. The arrangement is thermally insulated. The coefficients of thermal conductivity of A and B are 300 W//m^@C and 200 W//m^@C , respectively. After steady state is reached, what will be the temprature T of the interface ?

Two metal cubes A and B of same size are arranged as shown in Figure. The extreme ends of the combination are maintained at the indicated temperatures. The arrangement is thermally insulated. The coefficients of thermal conductivity of A and B are 300W//m ^@C and 200 W//m^@C, respectively. After steady state is reached the temperature t of the interface will be ......