The ratio of thermal conductivity of two rods of different material is `5 : 4`. The two rods of same area of cross-section and same thermal resistance will have the lengths in the ratio

The ratio of thermal conductivity of two rods of different materials is "5:4. The two rods of same area and same thermal resistance will have lengths in the ratio :-

The ratio of thermal conductivites of two different metals is 5:3 . In order to have the same thermal resistance in these metals of equal thickness what should be the ratio of their length?

The ratio of the coefficient of thermal conductivity of two different materials is 5 : 3 . If the thermal resistance of the rod of same thickness resistance of the rods of same thickness of these materials is same, then the ratio of the length of these rods will be

The thermal conductivity of a rod is 2. What is its thermal-resistivity ?

The end of two rods of different materials with their thermal conductivities, area of cross-section and lengths all in the ratio 1:2 are maintained at the same temperature difference. If the rate of flow of heat in the first rod is 4 cal//s . Then, in the second rod rate of heat flow in cal//s will be

The ends of the two rods of different materials with their lengths, diameters of cross-section and thermal conductivities all in the ratio 1 : 2 are maintained at the same temperature difference. The rate of flow of heat in the shorter rod is 1cals^(-1) . What is the rate of flow of heat in the larger rod:

The ratio of the areas of cross section of two rods of different materials is 1:2 and the ratio of ther themal conductivities of their mateirals is 4: 3. On keeping equal temperature difference between the ends of theserods, the rate of conduction of heat are equal. The ratio of the lengths of the rods is

The thermal conductivity of two materials are in the ratio 1 : 2. What will be the ratio of thermal resistances of rods of these materials having length in the ratio 1 :2 and area of cross-section in the ratio 1:2 :

Two wires of the same materical having equal area of cross-section have L and 2L. Their respective resistances are in the ratio