Home
Class 11
PHYSICS
Two conductors the of same lengths and a...

Two conductors the of same lengths and areas of cross-section are connected in series. Give the expression for common (junction) temperature.

Text Solution

Verified by Experts

`T_0=(L_1T_1+K_2T_2)/(K_1+K_2)`
Where, `T_0`-Temperature of the junction
`K_1` & `K_2` -thermal conductivities
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    SUBHASH PUBLICATION|Exercise TWO MARKS QUESTION AND ANSWERS|21 Videos

  • THERMAL PROPERTIES OF MATTER

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS AND ANSWERS|12 Videos

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    SUBHASH PUBLICATION|Exercise NUMERICAL WITH SOLUTIONS|34 Videos

  • THERMODYNAMICS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|24 Videos

Similar Questions

Explore conceptually related problems

Two conductors of identical dimensions of length and area of cross section are connected in series. What will be their equivalent thermal conductivity?

Two conductors of identical dimensions of length and area of cross-section are connected in parallel. What will be their equivalent thermal conductivity?

a] Obtain an expression for the equivalent resistance of three resistors connected in series. Also write the expressions for current and voltage in the circuit. b] Mention any two advantages of connecting resistors in series.

How electrical resistance varies along the length and area of cross section.

How does electrical resistance depend on the area of cross-section of a conductor?

Two wires have same length. But area of cross-section of one is 4 times that of the other. If the resistance of thinner wire be 200 Omega the resistance of the thicker wire is

Two conducting wires of the same material and of equal. lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of heat produced in series and parallel combinations would be -

SUBHASH PUBLICATION-THERMAL PROPERTIES OF MATTER-FOUR MARKS QUESTIONS AND ANSWERS
  1. Two conductors the of same lengths and areas of cross-section are conn...

    Text Solution

    |

  2. Show that R=8.314 Jmol^(-1)K^(-1)

    Text Solution

    |

  3. If the coefficient of linear expansion of iron is 1.20xx10^-5K^(-1) a...

    Text Solution

    |

  4. Given that molar specific heats of gas at' constant pressure and volum...

    Text Solution

    |

  5. Two metal rods made up of iron (K1=79Wm^(-1)K^(-1)) and brass (K2=109W...

    Text Solution

    |

  6. The thickness of a brick wall is 0.25m. The temperatures inside and ou...

    Text Solution

    |

  7. Find the amount of heat required to convert 10 kg ice at -10^(@)C to w...

    Text Solution

    |

  8. A body cools from 80^(@)C to 50^(@)C in 5 minutes. Calculate the time ...

    Text Solution

    |

  9. A cubical ice box of thermocol has each side 30 cm and thickness 5 cm ...

    Text Solution

    |

  10. A brass boiler has a base area of 0.15m^2 and thickness 1 cm. It boils...

    Text Solution

    |

  11. Estimate the temperature on the surface of the Sun from the following ...

    Text Solution

    |

  12. A body cools from 80^(@)C to 50^(@)C in 5 minutes. Calculate the time ...

    Text Solution

    |

  13. Sun emits maximum radiant energy at 5461A and Moon at 10mum. If the su...

    Text Solution

    |

  14. Luminosity of a distant star is 16000 times that of the Sun. If the su...

    Text Solution

    |

  15. The thickness of a filament wire is 0.15 mm and length 10 cm. The fila...

    Text Solution

    |

  16. A small cavity of diameter 2 mm whose temperature is 3000K acts as a b...

    Text Solution

    |

  17. Two vessels of different materials are identical in size and wall thic...

    Text Solution

    |

  18. At what rate a layer of ice will be formed if the surrounding temperat...

    Text Solution

    |

  19. Initial ice layer on a pond is 10 mm. What time will it take to form a...

    Text Solution

    |

  20. One end of a thick copper rod is immersed into a steam chamber and the...

    Text Solution

    |

  21. If the thermal conductivity of the material of a conductor is 375 W m^...

    Text Solution

    |