Home
Class 10
PHYSICS
At a given time, a house is supplied wit...

At a given time, a house is supplied with 100 A at 220 V. How many 75 W, 220 V light bulbs could be switched on in the house at the same time [if they are all connected in parallel]?

A

93

B

193

C

293

D

393

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (LONG ANSWER QUESTIONS)|30 Videos
  • LIGHT - REFLECTION AND REFRACTION

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (LONG ANSWER [LA] QUESTIONS)|30 Videos

Similar Questions

Explore conceptually related problems

Two bulbs have ratings 100 W, 220 V and 60 W, 220 V respectively. Which one has a greater resistance?

A bulb of 100 W, 220 V is operated on a line of 110 V then what will be the power consumed ?

Two electric bulbs A and B are rated as 60 W and 100 W. They are connected in parallel to the same source. Then

Two electric bulbs A and B are rated as 60 W and 100 W. They are connected in parallel to the same source, then

When a 40 W, 220 V lamp and 100 W, 220 V lamp are connected in series across 440 V supply

A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 A. The efficiency of the transformer is :

A heater of 220V heats a volume of water in 5 minutes time. A heater of 110V heats the same volume of water. Find time of heating.

A transformer is used to light 100 W - 110 lamp from 220 V mains. If the main current is 0.5 A, the efficiency of the transformer is

An electric heater rated 220 V and 550 W is connected to AC mains. The current drawns by it is

ZEN PUBLICATION-ELECTRICITY-ZEN ADDITIONAL QUESTIONS SECTION (MULTIPLE CHOICE QUESTIONS)
  1. A piece of metallic wire of resistance R is cut into 3 equal parts. Th...

    Text Solution

    |

  2. An electric kettle for use on a 230 V supply is rated at 3000 W. For s...

    Text Solution

    |

  3. At a given time, a house is supplied with 100 A at 220 V. How many 75 ...

    Text Solution

    |

  4. If the potential difference between the ends of a fixed resistor is ha...

    Text Solution

    |

  5. The heat produced in a wire of resistance 'X' when a current 'Y' flows...

    Text Solution

    |

  6. If the current flowing through a fixed resistor is halved, the heat pr...

    Text Solution

    |

  7. A cell, a resistor, a key and ammeter are arranged as shown in the cir...

    Text Solution

    |

  8. Electrical resistivity of a given metallic wire depends upon

    Text Solution

    |

  9. What is the maximum resistance which can be made using five resistors ...

    Text Solution

    |

  10. What is the minimum resistance which can be made using five resistors ...

    Text Solution

    |

  11. Which of the following represents voltage?

    Text Solution

    |

  12. Unit of electric power may also be expressed as

    Text Solution

    |

  13. Which of the following statements does not represent Ohm's law?

    Text Solution

    |

  14. Two resistances of 100 Ω and zero ohm are connected in parallel. Th...

    Text Solution

    |

  15. Three resistors 2 Ω, 3Ω and 4Ω are connected so that the equivalent re...

    Text Solution

    |

  16. When a current 'l' flows through a resistance 'R' for time 't' the ele...

    Text Solution

    |

  17. When a fuse is rated 8 A, it means

    Text Solution

    |

  18. The work done in moving a unit positive charge across two points in an...

    Text Solution

    |

  19. The potential at a point is 20 V. The work done to bring a charge of 0...

    Text Solution

    |

  20. The free electrons of a metal

    Text Solution

    |