Home
Class 11
PHYSICS
Why does a metal wire used for electrica...

Why does a metal wire used for electrical transmission sag?

Promotional Banner

Topper's Solved these Questions

  • SOUND

    CHETANA PUBLICATION|Exercise EXERCISE|145 Videos

  • Unit Test 1

    CHETANA PUBLICATION|Exercise EXERCISE|18 Videos

Similar Questions

Explore conceptually related problems

What is the difference between electrical transmission and chemical transmission.

Give reason for the following, satellite are used for long distance TV transmission

Why are high frequency carrier waves used for transmission of audio signals?

Give scientific reasons: For electric power transmission , copper or aluminium wire is used.

Why does a metalic piece become very hot when it is surrounded by a coil carrying high frequency (H.F.) alternating current?

For circuits used for transporting electric power, a low power factor implies large power loss in transmission. Explain .

Give Scientific reasons: For electric power transimssion,copper or aluminium wire is used

State different types of wires used for carrying electric power supply in household circuits.

Why does adsorption occur?

Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal ?

CHETANA PUBLICATION-THERMAL PROPERTIES OF MATTER-EXERCISE
  1. Explain the anomalous behaviour of water

    Text Solution

    |

  2. Why do lakes freeze first at the surface.

    Text Solution

    |

  3. Why does a metal wire used for electrical transmission sag?

    Text Solution

    |

  4. Derive the relation between alpha, beta, and gamma for a solid.

    Text Solution

    |

  5. An aluminium rod and iron rod show 1.5 m difference in their lengths w...

    Text Solution

    |

  6. Which substance has the highest heat capacity.

    Text Solution

    |

  7. State the relation between Principal and Molar specific heat capacitie...

    Text Solution

    |

  8. Write heat equation and state its formula.

    Text Solution

    |

  9. Define and explain specific heat.

    Text Solution

    |

  10. Why do we consider two specific heats of a gas? OR Why specific he...

    Text Solution

    |

  11. Define Principal Specific heat capacities of gases

    Text Solution

    |

  12. Define Molar specific heat capacities of gases.

    Text Solution

    |

  13. Explain heat capacity

    Text Solution

    |

  14. If the temperature of 4 kg mass of a material of specific heat capacit...

    Text Solution

    |

  15. Find thermal capacity for a copper block of mass 0.2 kg, if specific h...

    Text Solution

    |

  16. Which will require more energy, heating a 2.0 kg block of lead by 30 K...

    Text Solution

    |

  17. Specific latent heat of vaporization of water is 2.26 xx 10^6 J//kg. C...

    Text Solution

    |

  18. What is the specific heat of a metal if 50 cal of heat is needed to ra...

    Text Solution

    |

  19. (a) What is the Principle of calorimetry? OR What is the principle ...

    Text Solution

    |

  20. What is a calorimeter? What isits use? OR Explain the construction ...

    Text Solution

    |