Home
Class 11
PHYSICS
The length of a rod of aluminium is 1.0 ...

The length of a rod of aluminium is `1.0` m and its area of cross-section is `5.0cm^(2)`, its one end is kept at `250^(@)C` and the other end at `50^(@)C`. How much heat will flow in the rod in `5.0` minutes ? K or Al= `2.0xx10^(-1)kJ//sm^(@)C`. Mention the required conditions.

Text Solution

AI Generated Solution

To solve the problem of how much heat will flow in the aluminum rod in 5 minutes, we can follow these steps: ### Step 1: Understand the Given Data - Length of the rod (L) = 1.0 m - Area of cross-section (A) = 5.0 cm² = 5.0 × 10^(-4) m² (conversion from cm² to m²) - Hot end temperature (Th) = 250°C - Cold end temperature (Tc) = 50°C - Coefficient of thermal conductivity (k) = 2.0 × 10^(-1) kJ/(s·m·°C) = 200 J/(s·m·°C) (conversion from kJ to J) ...
Promotional Banner

Topper's Solved these Questions

  • SELF ASSESSMENT PAPER 5

    ICSE|Exercise Section-C|9 Videos

  • SELF ASSESSMENT PAPER 5

    ICSE|Exercise Section-D|6 Videos

  • SELF ASSESSMENT PAPER 5

    ICSE|Exercise Section-D|6 Videos

  • SELF ASSESSMENT PAPER 4

    ICSE|Exercise Section-D|6 Videos

  • THERMAL CONDUCTION

    ICSE|Exercise SELECTED PROBLEMS (Taken from the Previous Years ISC, AISSCE, HSSCE various States. Boards Roorke Qns & NCERT text) FROM EXPERIMENT TO DETERMINE K|2 Videos

Similar Questions

Explore conceptually related problems

The temperature difference between the ends of a rod of aluminium of length 1.0 m and area of cross section 5.0" cm"^(2) is 200^(@)C . How much heat will flow through the rod in 5 minutes ? The coefficient of thermal conductivity of aluminium is 0.2" kJ s"^(-1)" m"^(-1)" "^(@)C^(-1) .

The ends of copper rod of length 1m and area of cross section 1cm^(2) are maintained at 0^(@)C and 100^(@)C . At the centre of rod, there is a source of heat of 32W . The thermal conductivity of copper is 400W//mK

One end of conducting rod is maintained at temperature 50^(@)C and at the other end ice is melting at 0^(@)C . The rate of melting of ice is doubled if:

Figure shows a steel rod joined to a brass rod. Each of the rods has length of 31 cm and area of cross-section 0.20 cm^(2) . The junction is maintained at a constant temperature 50^(@)C and the two ends are maintained at 100^(@)C . The amount of heat taken out from the cold junction in 10 minutes after the steady state is reached in n xx 10^(2)J . Find 'n' the thermal conductivities are K_(steel) = 46 W//m-^(@)C and K_(brass) = 109 W//m-^(@)C .

The temperature of a wire of length 1 metre and area of cross-section 1 cm^(2) is increased from 0^(@)C to 100^(@)C . If the rod is not allowed to increased in length, the force required will be (alpha=10^(-5)//.^(@)C and Y =10^(11) N//m^(2))

A rod AB is 1m long. The temperature of its one end A is maintained at 100^(@) C and other end B at 10^(@) C, the temperature at a distance of 60 cm from point B is

Figure shows an aluminium rod joined to a copper rod. Each of the rods has a length of 20cm and area of cross section 0.20cm^(2) . The junction is maintained at a constant temperature 40^(@)C and the two ends are maintained at 80^(@)C . Calculate the amount of heat taken out from the cold junction in one minute after the steady state is reached. The conductivities are K_(Al)=200Wm^(-1)C^(-1) . and K_(Cu)=400Wm^(-1)C^(-1) .

One end of a brass rod of length 2.0 m and cross section 1cm^2 is kept in steam at 100^@C and the other end in ice at 0^@C . The lateral surface of the rod is covered by heat insulator. Determine the amount of ice melting per minute. Thermal conductivity of brass is 110 W//m-K and specific latent heat of fusion of ice is 80 cal//g .

The length of the two rods made up of the same metal and having the same area of cross-section are 0.6 m and 0.8 m respectively. The temperature between the ends of first rod is 90^(@) C and 60^(@) C and that for the other rod is 150 and 110^(@) C. For which rod the rate of conduction will be greater

An aluminium rod and a copper rod of equal length 1.0 m and cross-sectional area. 1cm^(2) are welded together as shown in figure. One end is kept at a temperature of 20^(@)C and the other at 60^(@)C Calculate the amount of heat taken out per second from the hot end. thermal conductivity of aluminium =200Wm^(-1)C^(-1) and of copper =390Wm^(-1)C^(-1) .