Home
Class 10
PHYSICS
In a hydroelectric power plant more elec...

In a hydroelectric power plant more electrical power can be generated if water falls from a grater height because

A

its temperature increases

B

Larger amount of potentia energy is converted into kinetic energy

C

the electricity content of water increases with height.

D

more water molecules dissociate into ions.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SOURCES OF ENERGY

    MODERN PUBLICATION|Exercise EXAMPLE|92 Videos
  • REFLECTION AND REFRACTION

    MODERN PUBLICATION|Exercise EXAMPLE|138 Videos
  • THE HUMAN EYE AND THE COLOURFUL WORLD

    MODERN PUBLICATION|Exercise EXERCISE|106 Videos

Similar Questions

Explore conceptually related problems

At a hydroelectric power plant, the water pressure head is at a height of 300 m and the water flow available is 100 m^3s^-1 . If the turbine generator efficiency is 60%, estimate the electric power available from the plant (g = 9.8 ms^-2) .

How is hydroelectricity generated at hydroelentirc power plant? Give its advantages and disadvantaes?

Explain whether power of a lens will be more in air of water?

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. Flow much power must the plant supply, assuming there is negligible power loss due to leakage?

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. Characterise the step up transformer at the plant.

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. Estimate the line power loss in the form of heat.

Whether the power of a lens will be more in air or in water?

It is a common observation that rain clouds can be at about a kilometer altitude above the ground. If a rain drop falls from such a height freely under gravity, what will be its speed? Also calculate in km/h. (G = 10 m//s^2) .

In a refrigerator, one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1kW power, and heat is transferred from -3^@ C to 27^@C , find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect engine.

MODERN PUBLICATION-SOURCES OF ENERGY-EXAMPLE
  1. In a hydroelectric power plant more electrical power can be generated ...

    Text Solution

    |

  2. 6.4 kJ of energy per minute is produced in a nuclear reactor. Find out...

    Text Solution

    |

  3. If the difference in the mass of reactant and mass of product in a nuc...

    Text Solution

    |

  4. Out of two elements A and B with mass number 2 and 235, which one is s...

    Text Solution

    |

  5. What is good source of energy?

    Text Solution

    |

  6. What is a good fuel?

    Text Solution

    |

  7. If you could use any source of energy for heating your food, which one...

    Text Solution

    |

  8. What are the disadvantages of fossil fules?

    Text Solution

    |

  9. Why are we looking at alternative sources of energy?

    Text Solution

    |

  10. How has the traditional use of wind and water energy been modified for...

    Text Solution

    |

  11. What kind of mirror-concave, convex or plane would be best suited for ...

    Text Solution

    |

  12. What are the limitations of the energy that can be obtained from the o...

    Text Solution

    |

  13. What is geothermal energy?

    Text Solution

    |

  14. What are the advantages of nuclear energy?

    Text Solution

    |

  15. Can any source of energy be pollution free? Why or why not?

    Text Solution

    |

  16. Hydrogen has been used as a rocket fuel would you consider it a cleane...

    Text Solution

    |

  17. Name two energy sources that you would consider to be renewable give r...

    Text Solution

    |

  18. Give the names of two energy sources that you would consider to be exh...

    Text Solution

    |

  19. A solar water heater cannot be used to get hot water on a :

    Text Solution

    |

  20. Which of the following is not an example of a bio-mass energy source?

    Text Solution

    |

  21. Most of the sources of energy we use represent stored solar energy whi...

    Text Solution

    |