Home
Class 9
PHYSICS
A 25 W electric bulb is used for 10 hour...

A 25 W electric bulb is used for 10 hours every day. How much electricity doesit consume each day?

Text Solution

Verified by Experts

`P 25, W = 0.025 kW`
`therefore` Energy consumed = power `xx` time
`=0.025xx10`
Energy = 0.25 kW hr
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    BAL BHARTI|Exercise Can you tell?|1 Videos
  • WORK AND ENERGY

    BAL BHARTI|Exercise Can you recall?|1 Videos
  • STUDY OF SOUND

    BAL BHARTI|Exercise USE YOUR BRAIN POWER|4 Videos

Similar Questions

Explore conceptually related problems

A 50 W electric bulb is used for 8 hours every day. How much electricity does it consume each day?

Solve the following examples: If a 1200 W electric iron is used daily for 30 minutes, how much total electricity is consumed in the month of April?

An electric bulb of 40 W is used for 50 days at 5 hours per day. Find the units of energy consumed by the bulb and the cost of using electricity at the rate Rs. 3 per unit.

Solve the following examples: An electric bulb of 40 W is used for 25 days at 10 hours per day. Find the units of energy consumed by the bulb and the cost of using electricity at the rate Rs. 2 per unit.

Solve the following examples/ numerical problems. A electric iron rated 750 w is operated for 2 hours/ day. How much energy is consumed by the electric iron for 30 days ?

An electric bulb rated 60 w is used 10 hours per day for 20 days. If the cost of a unit is Rs 3.00 find the energy bill.

An electric tungsten bulb is connected into a home circuit. The home electric supply runs at 220 V potential difference. When switched on, a current of 0.45 A flows through the bulb What must be power (wattage)of the bulb? if it is kept on for 10 hours, how many units of electricity will be consumed?

An electric oven is rated 1600 W. How much energy (in kWh) does it use in 8 hours?

If a TV of rating 100 W is operated for 6 hours per day, find the number of units consumed in a leap year.

Through a coil of wire of resistance 42 Omega , a current of 2A is passed for 5 minutes. How much electric charge has flown through the coil? How much heat has been produced?

BAL BHARTI-WORK AND ENERGY-Exercises
  1. A 25 W electric bulb is used for 10 hours every day. How much electric...

    Text Solution

    |

  2. Explain the difference between potentail energy and kinetic energy.

    Text Solution

    |

  3. Answer the following questions: Derive the formula for the kinetic en...

    Text Solution

    |

  4. Prove that the kinetic energy of a freely falling object on reaching t...

    Text Solution

    |

  5. Answer the following questions: Determine the amount of work done wh...

    Text Solution

    |

  6. Answer the following questions: If an object has 0 momentum, does it h...

    Text Solution

    |

  7. Why is the work done on an object moving with uniform circular motion ...

    Text Solution

    |

  8. Choose one or more alternatives: For work to be performed, energy mus...

    Text Solution

    |

  9. Choose one or more alternatives: the joule is the unit of…….. A. fo...

    Text Solution

    |

  10. Choose one or more alternatives: Which of the forces involved in drag...

    Text Solution

    |

  11. Choose one or more alternatives: Power is a measure of the ………

    Text Solution

    |

  12. Choose one or more alternatives: While dragging or lifting an objectm...

    Text Solution

    |

  13. The potential energy of your body isleast when you are……

    Text Solution

    |

  14. The total energy of an object falling freely towards the ground………………....

    Text Solution

    |

  15. If we increase the velocity of a car moving on a flat surface to 4 tim...

    Text Solution

    |

  16. The work done on an object does not depend on…..

    Text Solution

    |

  17. Questions based on paragraph Study the following activity and answer ...

    Text Solution

    |

  18. Questions based on paragraph Study the following activity and answer ...

    Text Solution

    |

  19. Study the following activity and answer the questions: Now take two b...

    Text Solution

    |

  20. Study the following activity and answer the questions: At the moment ...

    Text Solution

    |

  21. Study the following activity and answer the questions: As the balls r...

    Text Solution

    |