Heat Conduction in One Dimension
Heat Conduction in One Dimension: Overview
This topic covers concepts, such as Thermal Conduction, The Steady State Heat Flow, Heat Flow through Spherical Bodies & Heat Flow through Cylindrical Bodies etc.
Important Questions on Heat Conduction in One Dimension
Graph shown below shows temperature variation inside the wall. The wall of a house is made of two different materials of same thickness. The temperature of the outer wall is and that of inner wall is . Then:

Which one is having the lowest thermal conductivity?

What is the Searle's apparatus?

What is Searle's method for thermal conductivity?

Two heater coils separately take and to boil a certain amount of water. If both the coils are connected in series, the time taken to boil water is

Cloudy nights are usually warmer than clear ones, because clouds

SI unit of temperature gradient is

Which one of the following is not the example of the athermanous medium.

Which one of the following is not the example of the diathermanous medium.

Three rods (lengths made of the same material and having the same area of cross-section are joined as shown in figure. The end points and are maintained at constant temperatures and respectively. Assuming that there is no loss of heat from the surface of the rods, find the temperature that the junction ultimately reaches.

Three rods and of same length and cross-sectional area are arranged as shown. The end is immersed in ice whose mass is and is at . The end is maintained at . Heat is supplied at constant rate of . Thermal conductivities of and are and , respectively. Time after which whole ice will melt is

In the given diagram, the possible direction of heat energy transformation is

In steady state heat conduction, the equations that determine the heat current [heat flowing per unit time per unit area] and temperature in space are exactly the same as those governing the electric field and electrostatic potential with the equivalence given in the table below.
Heat flow | Electrostatics |

A copper rod of length and an iron rod of length having the same areas of cross section are connected in series. Thermal conductivities of copper and iron are respectively and units. The equivalent conductivity of the composite bar in unit is ____.

Heat is passed through two cylindrical rods of same material. Their diameters and lengths are in the ratio and respectively. If their ends are maintained at same temperature difference, the ratio of rate of flow of heat through them is

The diameter of a rod is given by where is a constant and is the distance from one end. If the thermal conductivity of the material is what is the thermal resistance of the rod if length is .

What is the rate of flow of heat through a tapering rod of length tapering from radius and when the temperature of the ends are and and coefficient of thermal conductivity is

Three rods made of the same material and having same cross-sectional area but of different lengths and are joined as shown. The temperature of the junction is :-

A metal rod of length has cross-sectional areas and as shown in the following figure. The two ends are maintained at temperatures and The temperature of middle point is:-

On heating one end of a rod, the temperature of whole rod will be uniform when:-
