Home
Class 12
PHYSICS
Why are electrical wires covered with no...

Why are electrical wires covered with non-conducting materials?

Promotional Banner

Topper's Solved these Questions

  • ELEMENTARY PHENOMENA OF ELECTROSTATICS

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER|20 Videos

  • ELEMENTARY PHENOMENA OF ELECTROSTATICS

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIVE|2 Videos

  • ELEMENTARY PHENOMENA OF ELECTROSTATICS

    CHHAYA PUBLICATION|Exercise NCERT TEXTBOOK QUESTIONS|5 Videos

  • ELECTROMAGNETISM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|26 Videos

  • KIRCHHOFF'S LAWS AND ELECTRICAL MEASUREMENT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|16 Videos

Similar Questions

Explore conceptually related problems

What is the dielectric constant of conducting materials?

Is electric field conservative or non-conservative?

why does the electrical conductivity of semiconductors increse with rise in temperature?

Based on band theory, explain why metals are good conductors of electricity, while insulators are non-conductors of electricity.

The colour code of electrical wiring is

State the expression of the electrical conductivity of the material of a semiconductor in terms of the mobilities of electrons and holes.

Explain the electrical non-conductivity of an insulator with the help of band theory.

Why is the electrical conductivity of metals found to decrease with rise in temperature?

CHHAYA PUBLICATION-ELEMENTARY PHENOMENA OF ELECTROSTATICS -EXERCISE
  1. What makes a conductor different from an insulator?

    Text Solution

    |

  2. Why cannot the experiments on statical electricity be performed accura...

    Text Solution

    |

  3. Why are electrical wires covered with non-conducting materials?

    Text Solution

    |

  4. Why does a spherical conductor retain its charge for a long time in co...

    Text Solution

    |

  5. Why is it not possible to charge a metal rod holding it in hand? What ...

    Text Solution

    |

  6. What is the utility of the drying agent inside a gold-leaf electroscop...

    Text Solution

    |

  7. Charging a gold-leaf electroscope by conduction is inferior to the met...

    Text Solution

    |

  8. Can two similarly charged balls be attracted by each other? If yes, ex...

    Text Solution

    |

  9. To charge a gold-leaf electroscope by induction, the inducting charge ...

    Text Solution

    |

  10. Bound charges can reside inside a hollow conductor. Explain.

    Text Solution

    |

  11. A charged glass rod is brought near a pin fixed with the disc of a gol...

    Text Solution

    |

  12. "There exists no sharp line separating conductors from insulators."-Ex...

    Text Solution

    |

  13. How it is possible to transfer whole of the charge on an insulated con...

    Text Solution

    |

  14. You are given a negatively charged pith ball, hanging from a string, a...

    Text Solution

    |

  15. A body has -80muC charge. What is the number of excess electrons in th...

    Text Solution

    |

  16. A conductor is charged with 14.4 xx 10^(-19) C. Determine the number ...

    Text Solution

    |

  17. How much charge is to be given to a sphere of radius 30 cm so that its...

    Text Solution

    |

  18. The surface area of a body is 25 cm^2 and its surface density of charg...

    Text Solution

    |

  19. What will be the surface density of charge of a sphere of radius 4 cm,...

    Text Solution

    |

  20. Two spheres of radii 4 cm and 8 cm have the same amount of charge. Det...

    Text Solution

    |