Home
Class 11
PHYSICS
Three bars of aluminium, brass and coppe...

Three bars of aluminium, brass and copper are of equal length and cross section. The three pieces are joined together as shown in A, B and C and the ends are maintained at `100^(@)C` and `0^(@)C`. The thermal conductivities of aluminium, brass and copper are in ratio 2 : 1 : 4. Assume no heat loss through curved surface of the bar and that the system is in steady state.
(a) In which of the three cases (A, B or C) the temperature difference across aluminium bar will be maximum?
(b) Draw a graph showing variation of temperature from one end of the bar to another in case B.

Promotional Banner

Similar Questions

Explore conceptually related problems

Two ends of a conducting rod of varying cross-section are maintained at 200^(@)C and 0^(@)C respectively. In steady state:

Two ends of a conducting rod of varying cross-section are maintained at 200^(@)C and 0^(@)C respectively. In steady state:

Two rods of copper and brass having the same length and cross - section are joined end to end. The free end of the copper is at 0^(@)C and of brass is at 80^(@)C in steady-state. If thermal conductivity of copper is 4 times of that of brass find the temp. at junction of two rods

Two rods of similar area of cross section and length are joined as shown in the figure. The ratio of their thermal conductivity is 2:3. The free ends are maintained at 100^(@)C and 0^(@)C respectivley. THE temperature at junction in steady state is

Two rods of similar area of cross section and length are joined as shown in the figure. The ratio of their thermal conductivity is 2:3. The free ends are maintained at 100^(@)C and 0^(@)C respectivley. THE temperature at junction in steady state is

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

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

The outer faces of a rectangular slab made of equal thickness of iron and brass are maintained at 100^(@)C and 0^(@)C respectively. The temperature at the interface is (Thermal conductivity of iron and brass are 0.2 and 0.3 respectively)

The outer faces of a rectangular slab made of equal thickness of iron and brass are maintained at 100^(@)C and 0^(@)C respectively. The temperature at the interface is (Thermal conductivity of iron and brass are 0.2 and 0.3 respectively)