Rate of heat flow through a cylindrical rod is `H_(1)`. Temperatures of ends of rod are `T_(1)` and `T_(2)`. If all the dimensions of rod become double and temperature difference remains same and rate of heat flow becomes `H_(2)`. Then `(H_(1))/(H_(2))` is `0.x`. Find value of x.

A cylindrical rod having temperature T_(1) and T_(2) at its ends. The rate of flow of heat is Q_(1) cal//sec . If all the linear dimensions are doubled keeping temperature constant, then rate of flow of heat Q_(2) will be

Heat is flowing through two cylindrical rods of the same material. The diamters of the rods are in the ratio 1: 2 and the length in the ratio 2 : 1 . If the temperature difference between the ends is same then ratio of the rate of flow of heat through them will be

Heat is flowing through two cylindrical rods of the same material . The diameters of the rods are in the ratio 1:2 and the lengths in the ratio 2:1.If the temperature difference between the ends be the same ,then the ratio of the rate of flow if heat through them will be ?

The order of heat of fusion of T_(2),D_(2) and H_(2) is

The ratio of the diameters of two metallic rods of the same material is 2 : 1 and their lengths are in the ratio 1 : 4 . If the temperature difference between their ends are equal, the rate of flow of heat in them will be in the ratio

Rate of heat flow through two conducting rods of identical dimensions having thermal conductivities K_(1) and K_(2) and Q_(1) and Q_(2) when their ends are maintained at the same difference of temperature individually. When the two rods are joined in series with their ends maintained at the same temperature difference (as shown in the figure), the rate of heat flow will be

Find the rate of heat flow through a cross section of the rod shown in figure (theta_(2)gttheta_(1)) . Thermal conductivity of the material of the rod is K.

1 kcal of heat flowing through a rod of iron.When the rod is cut down to 4 pieces then what will be the heat flowing through each piece having same differential temperature ?

Three rods of the same length and the same area of the cross-section are joined. The temperature of two ends one T_(1) and T_(2) as shown in the figure. As we move along the rod the variation of temperature are as shown in the following [Rods are insulated from the surrounding except at the faces]

A rod is heated at one end as shown in figure. In steady state temperature of different sections becomes constant but not same. Why so? .