Home
Class 10
PHYSICS
What is the function of an earth wire? W...

What is the function of an earth wire? Why is it necessary to earth metallic appliances?

Text Solution

Verified by Experts

The correct Answer is:
N/a
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    LAKHMIR SINGH & MANJIT KAUR|Exercise LONG ANSWER TYPE QUESTIONS|2 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    LAKHMIR SINGH & MANJIT KAUR|Exercise QUESTIONS BASED ON HIGH ORDER THINKING SKILLS|6 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT BOOK|2 Videos

  • ELECTRICITY

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT|3 Videos

  • REFLECTION OF LIGHT

    LAKHMIR SINGH & MANJIT KAUR|Exercise Very Short Answer Type Questions|1 Videos

Similar Questions

Explore conceptually related problems

(a) State Fleming's left Hand Rule. (b)List three characteristic features of the electric current used in our homes. (c) What is a fuse ? why is it called a safety device ? (d) why is it necessary to earth metallic electric appliances ?

(i) What is the function of earth wire in electrical instruments? (ii) Explain what is short circuiting an electric supply. (iii) What is the usual current rating of the fuse wire in the line to feed: (a) Lights and fans? (b) Appliances of 2kW or more power?

LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  1. Explain the importance of using in a household electric circuit (i) fu...

    Text Solution

    |

  2. (a) An electric iron is rated at 230 V, 750 W. Calculate (i) the maxim...

    Text Solution

    |

  3. What is the function of an earth wire? Why is it necessary to earth me...

    Text Solution

    |

  4. (a) What current is taken by a 3 kW electric geyser working on 240 V m...

    Text Solution

    |

  5. A 1.25 kW heater works on a 220 V mains supply. What current rating wo...

    Text Solution

    |

  6. The maximum number of 40 W tube-lights connected in parallel which can...

    Text Solution

    |

  7. In normal use, a current of 3.5 A flows through a hair dryer. Choose a...

    Text Solution

    |

  8. Which one of the following statements is not true ?

    Text Solution

    |

  9. A car headlamp of 48 W works on the car battery of 12 V. The correct f...

    Text Solution

    |

  10. A 3-pin mains plug is fitted to the cable for a 1 kW electric kettle t...

    Text Solution

    |

  11. A T.V. set consumes an electric power of 230 watts and runs on 230 vol...

    Text Solution

    |

  12. An MCB which cuts off the electricity supply in case of short-circuiti...

    Text Solution

    |

  13. An air-conditioner of 3.2 kW power rating is connected to a domestic e...

    Text Solution

    |

  14. Three appliances are connected in parallel to the same source which pr...

    Text Solution

    |

  15. A vaccum cleaner draws a current of 2 A from the mains supply (a) Wh...

    Text Solution

    |

  16. An electric kettle rated as 1200 W at 220 V and a toaster rated at 100...

    Text Solution

    |

  17. What is the main difference in the wiring of an electric bulb and a so...

    Text Solution

    |

  18. A domestic lighting circuit has a fuse of 5 A. If the mains supply is ...

    Text Solution

    |

  19. Why does a compass needle get deflected when brought near a bar magnet...

    Text Solution

    |

  20. Draw magnetic field lines around a bar magnet.

    Text Solution

    |