Home
Class 11
PHYSICS
A windmill generates electrical energy. ...

A windmill generates electrical energy. Suppose, the windmill converts a fixed part of the wind energy linked with the blades, to electrical energy . If the wind velocity is v, the output electric power is directly proportional to

A

v

B

`v^2`

C

`v^3`

D

`v^4`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (Very short Answer Type Questions)|30 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-I)|10 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|38 Videos

  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

Write down some uses of electrical energy.

Define BOT unit of electrical energy .

Write the commercial unit of electrical energy?

The blades of a windmill sweep out a circle of area A. Assume that the windmill converts 25% of the wind energy into electrical energy and that A=30 m^2 , v=36 km/h and density of air is 1.2kg//m^3 . What is the electrical power produced?

The apparatus that is required for conversion of light energy to electrical energy is

Name a machine where electrical energy is converted to mechanical, energy.

Write principle to utilize tidal energy to produce electricity.

The consumption of electric energy in household circuit is measured by the unit

Write the principle to generate electricity using wind energy.

CHHAYA PUBLICATION-WORK AND ENERGY-EXERCISE (Multiple Choice Questions)
  1. Power required to raise a mass of 120 kg vertically upwards at a veloc...

    Text Solution

    |

  2. A machine, applying a constant power is driving an object along a stra...

    Text Solution

    |

  3. A windmill generates electrical energy. Suppose, the windmill converts...

    Text Solution

    |

  4. A particle moves with a velocity 5hati -3hatj+6hatkm//s under the infl...

    Text Solution

    |

  5. A quater horse power motor runs at a speed of 600 rpm. Assuming 40% ef...

    Text Solution

    |

  6. Energy of a body thrown upward is

    Text Solution

    |

  7. A particle is moving in a straight line such that its retardation is ...

    Text Solution

    |

  8. Starting from rest a car moves on a plane. The coefficient of friction...

    Text Solution

    |

  9. A particle falls from rest under the action of gravity . Variation of ...

    Text Solution

    |

  10. A long spring is stretched by 2 cm. its potential energy is U . If th...

    Text Solution

    |

  11. In which of the following cases the potential energy is defined

    Text Solution

    |

  12. A body of mass m thrown vertically upwards attains a maximum height h....

    Text Solution

    |

  13. For a moving particle (mass m, velocity v) having a momentum p, which...

    Text Solution

    |

  14. The potential energy of a system increases if work is done

    Text Solution

    |

  15. Two bodies of masses 4 kg and 5kg are moving with equal momentum. The...

    Text Solution

    |

  16. A particle of mass m at rest in acted upon by a force P for a time t. ...

    Text Solution

    |

  17. If the linear momentum of a body is increased by 50% , then the kineti...

    Text Solution

    |

  18. one end of a thead of length h has a stone tied to it . Taking the ot...

    Text Solution

    |

  19. Along the surface of a hemispherical container, a small ball is pushed...

    Text Solution

    |

  20. A bucket full of water is rotated in a vertical circle of radius r. i...

    Text Solution

    |