Home
Class 11
PHYSICS
All the rods have same conductance 'K' a...

All the rods have same conductance `'K'` and same area of cross section '`A'`. If ends A and C are maintained at temperature `2T_(0)` and `T_(0)` respectively then which of the following is`//`are correct?

A

Rate of heat flow through ABC, AOC and ADC is same

B

Rate of heat flow through BO and OD is not same

C

Total Rate of flow from A to C `(3KAT_(0))/(2a)`

D

Temperature at junction B,O and D are same

Text Solution

Verified by Experts

The correct Answer is:
D
Symmetry
`I_(AB)=I_(BC)` and `:. ` No current in BO and OD
`:. T_(B)=T_(O)=T_(D)`
Promotional Banner

Topper's Solved these Questions

  • HEAT TRANSFER

    RESONANCE|Exercise Exercise-3|1 Videos

  • HEAT TRANSFER

    RESONANCE|Exercise Advancel Level Problems|17 Videos

  • HEAT TRANSFER

    RESONANCE|Exercise Exercise-2|1 Videos

  • GRAVITATION

    RESONANCE|Exercise Exercise|21 Videos

  • KINEMATICS

    RESONANCE|Exercise Exercise|65 Videos

Similar Questions

Explore conceptually related problems

Four identical rods AB, CD, CF and DE are joined as shown in figure. The length, cross-sectional area and thermal conductivity of each rod are l, A and K respectively. The ends A, E and F are maintained at temperature T_(1) , T_(2) and T_(3) respectively. Assuming no loss of heat to the atmospere, find the temperature at B.

Six identical uniform conducting rods are fixed to make a regular hexagon as shown. The ends A and C are maintained at constant temperature 2T_(0) and 6 T_(0) . After the steady state is reached. Pick up the correct relation between temperatures T_(B),T_(B),T_(E) and T_(F) of ends B,D,E and F respectively.

Two identical rods AB and CD, each of length L are connected as shown in figure-4.22. Their cross-sectional area is A and their thermal conductivity is k. Ends A, C and D are maintained at temperatures T_(1),T_(2) and T_(3) respectively. Neglecting heat loss to the surroundings, find the temperature at B.

Five rods of same material and same cross-section are joined as shown. Lengths of rods ab, ad and bc are l, 2l and 3l respectively. Ends a and c are maintained at temperatures 200^(@)C and 0^(@)C respectivelly. For what length x of rod dc there will be no heat flow through rod bd ?

Three rods AB,BC and BD made of the same materical and having the same area of cross section have been joined as shown is the The ends A,C and D are held at temperatures 20^(@)C Cand 80^(@)C respectively If each rod is of same length then find the temperature at the junction B of the three rods .

Five rods of same material and same cross-section are joined as shown. Lengths of rods ab, ad and bc are l, 2l and 3l respectively. Ends a and c are maintained at temperatures 200^(@)C and 0^(@)C respectivelly. If x has the value calculated in the above question. Then temperature of junction b or d is

Three rods of identical cross-sectional area and made from the same metal form the sides of an isosceles triangle ABC right angled at B as shown in the figure. The points A and B are maintained at temperature T and (sqrt2)T respectively in the steady state. Assuming that only heat conduction takes place, temperature of point C will be

Three rods of identical cross-sectional area and made from the same metal form the sides of an isosceles Delta ABC right angled at B. The points A and B are maintained at temperetures T and sqrt(2)T , respectively in the steady state. Assuming that only heat conduction takes place, temperature of point C is

Three rods of identical cross-sectional area and made from the same metal form the sides of an insosceles triangle ABC right angled at B The pints A and B are maintained at temperatures T and sqrtT respectively in the steady state Assuming that only heat conduction takes place, temperature of point C is . .

Three rods of identical cross-sectional area and made from the same metal form the sides of an equilateral triangle ABC The points A and B are maintained at temperature sqrt3 T and T respectively In the steady state, the temperature of the point C is T_(C) Assuming that only heat conduction takes place, the value of T_(C)//T is equal to .

RESONANCE-HEAT TRANSFER-Exercise
  1. A cylindrical rod having temperature T(1) and T(2) at its ends. The ra...

    Text Solution

    |

  2. A wall has two layers A and B each made of different materials. Both t...

    Text Solution

    |

  3. All the rods have same conductance 'K' and same area of cross section ...

    Text Solution

    |

  4. Consider two rods of same length and different specific heats (S1 and ...

    Text Solution

    |

  5. Two plates each of area A, thickness L1 and L2 thermal conductivities ...

    Text Solution

    |

  6. Consider a compound slab consisting of two different material having e...

    Text Solution

    |

  7. A square is made of four rods of same material one of the diagonal of ...

    Text Solution

    |

  8. If the temperature difference on the two sides of a wall increases fro...

    Text Solution

    |

  9. The colour of a star indicates its

    Text Solution

    |

  10. The means of energy transfer in vacuum is:

    Text Solution

    |

  11. Which of the following is nearest to blackbody-

    Text Solution

    |

  12. Which of the following is true statement?

    Text Solution

    |

  13. For a black body at temperature 727^@C, its radiating power is 60 watt...

    Text Solution

    |

  14. According to Wien's law

    Text Solution

    |

  15. If lambda(m) denotes the wavelength at which the radiative emission fr...

    Text Solution

    |

  16. A black body at 1227^(@)C emits radiations with maximum intensity at a...

    Text Solution

    |

  17. The energy radiated by a black body is directly proportional to :

    Text Solution

    |

  18. If temperature becomes double, the emitted radiation will be :

    Text Solution

    |

  19. Prevost's theory of heat exchange tells that a body radiates thermal e...

    Text Solution

    |

  20. Reflection and absorption coefficient of a given surface at 0^@C for a...

    Text Solution

    |