Home
Class 9
PHYSICS
What is the power of a body which is doi...

What is the power of a body which is doing work at the rate of one joule per second?

Text Solution

Verified by Experts

The correct Answer is:
1 W
NA
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Long Answer Type Questions|2 Videos

  • WORK AND ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Multiple Choice Questions|1 Videos

  • WORK AND ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Multiple Choice Questions|1 Videos

  • SOUND

    LAKHMIR SINGH & MANJIT KAUR|Exercise Value Based Questions|20 Videos

Similar Questions

Explore conceptually related problems

What would be the number of bytes, transferred at the rate of 1 kilobit per second?

A one kg stone attached to the end of a 60 cm chain is revolving at the rate of 3 revolutions/second. It is found that after 30 second, it makes only one revolution per second. What is the mean torque ?

What is the condition for a force to do work on a body ?

What is the power of a machine which does 1000 joules of work in 10 seconds ?

The temperature at which a black body of unit area loses its energy at the rate of 1 joule/second is

The linear momentum of a body changes at the rate of 10kgms^(-1) per second Force acting on the body is

LAKHMIR SINGH & MANJIT KAUR-WORK AND ENERGY-Exercise
  1. One horse power is equal to

    Text Solution

    |

  2. Name the physical quantity whose unit is watt.

    Text Solution

    |

  3. What is the power of a body which is doing work at the rate of one jou...

    Text Solution

    |

  4. A body does 1200 joules of work in 2 minutes. Calculate its power.

    Text Solution

    |

  5. How many joules are there in one kilowatt-hour?

    Text Solution

    |

  6. Name the quantity whose unit is : (a) kilowatt (b) kilowatt-hour

    Text Solution

    |

  7. What is the common name of '1 kWh' of electrical energy?

    Text Solution

    |

  8. A cell converts one form of energy into another form. Name the two for...

    Text Solution

    |

  9. Name the device which converts electrical energy into mechanical energ...

    Text Solution

    |

  10. Name the devices or machines which convert : (a) Mechanical energy i...

    Text Solution

    |

  11. Name the devices or machines which convert : (i) Electrical energy i...

    Text Solution

    |

  12. Fill in the following blanks with suitable words : (a) Power is the ...

    Text Solution

    |

  13. A trolley is pushed along a road with a force of 400 N through a dista...

    Text Solution

    |

  14. What kind of energy transformations take place at a hydroelectric powe...

    Text Solution

    |

  15. What kind of energy transformations take place at a coal-based thermal...

    Text Solution

    |

  16. A man weighing 500 N carried a load of 100 N up a flight of stairs 4 m...

    Text Solution

    |

  17. The power output of an engine is 3 kW. How much work does the engine d...

    Text Solution

    |

  18. An electric heater uses 600 kJ of electrical energy in 5 minutes. Calc...

    Text Solution

    |

  19. How much electrical energy in joules does a 100 watt lamp consume : ...

    Text Solution

    |

  20. Five electric fans of 120 watts each are used for 4 hours. Calculate t...

    Text Solution

    |