Four rods with different radii and lengt...

Four rods with different radii and length l are used to connect two heat reservoirs at different temperature. Which one will conduct most heat?

`r= 1 cm,l= 1 m`

`r= 1 cm,l= 1/2 m`

`r= 2 cm,l= 2 m`

`r= 21 cm,l= 1/2 m`

Text Solution

Verified by Experts

Topper's Solved these Questions

Sound
TARGET PUBLICATION|Exercise Exercise|248 Videos

Similar Questions

Explore conceptually related problems

What is the difference between temperature and heat?

Which of the following circular rods (given radius r length x and each made of the same material) whose ends are maintained at the same temperature will conduct most heat?

Two iron bars of same length with unequal radii are heated for the same rise in temperature. Then linear expansion will be

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

How we are different? : Conduction and convection of heat.

Two rods (one semi-circular and other straight) of same material and of same cross-sectional area are joined as shown in the figure. The points A and B are maintained at different temperature. The ratio of the heat transferred through a cross-section of a semi-circular rod to the heat transferred through a cross section of the straight red in a given time is

Distinguish between: What is the difference between heat and temperature?

Distinguish between : What is the difference between heat and temperature ? What are their units ?

Rate of loss of heat of two spheres at same temperature having radii in ratio 1 : 2 is

Two uniform brass rods A and B of length l and 2l and radii 2r and r respectively are heated to the same temperature. The ratio of the increase in the volume of A to that of B is

TARGET PUBLICATION-Thermal Properties of Matter-Exercise

1 gram of ice is mixed with 1 gram of steam. At thermal equilibrium, t...
Text Solution
|
60 g of ice at 0^@C is mixed with 60 g of steam at 100^@C. At thermal ...
Text Solution
|
Four rods with different radii and length l are used to connect two he...
Text Solution
|
Two metal rods of same length and same material conduct a given amount...
Text Solution
|
A cylindrical metallic rod in thermal contact with two reservoirs of h...
Text Solution
|
The two ends of a metal rod are maintained temperatures 100^@C and 110...
Text Solution
|
Two rectangular blocks, having identical dimensions can be arranged ei...
Text Solution
|
Same quantity of ice is filled in each of the two metal containers P a...
Text Solution
|
Three rods of copper, brass and steel are welded together to form a Y-...
Text Solution
|
A refrigerator door is 150 cm high, 80 cm wide and 6 cm thick. If the ...
Text Solution
|
Air conditioners are good example of
Text Solution
|
The unit of thermal conductivity is:
Text Solution
|
Two rods A and B of different materials are welded together shown in f...
Text Solution
|
If a piece of metal is heated to temperature and then allowed to cool ...
Text Solution
|
Newton's law of cooling leads to the expression
Text Solution
|
A liquid in a beaker has temperature theta(t) at time t and theta0 is ...
Text Solution
|
A liquid cools from 70^@C to 60^@C in 5 minutes. If the temperature of...
Text Solution
|
A pan filled with hot food cools from 94^@C to 86^@C in 2 minutes. Wh...
Text Solution
|
Certain quantity of water cools from 70^@C to 60^@C in the first 5 min...
Text Solution
|
A body cools from 62^@ C to 50^@C in 10 minutes. How long will it take...
Text Solution
|