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प्रश्न
Explain the stages in electric generation from the given schematic diagram.
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उत्तर
- Electricity generation using wind energy is done with the help of a wind turbine.
- A wind turbine is a machine used to convert the kinetic energy of the wind to electrical energy.
- A wind turbine consists of rotating blades, a gear box and a generator.
- When the wind strikes the blade of the turbine, the blades rotate.
- The axle of the turbine is connected to the electric generator through a gear box.
- The gear box is used to increase the rotations per unit time.
- In this way, the rotating blades run the turbine which in turn drives the generator to produce electricity.
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संबंधित प्रश्न
Write the energy conversion that takes place in a hydropower plant.
What type of energy is possessed by flowing water?
How has the traditional use of energy of flowing water been modified for our convenience?
What is hydroelectricity? Explain the basic principle of generation of hydroelectricity with the help of a labelled diagram.
At a hydro power plant:
(a) kinetic energy possessed by stored water is converted into electrical energy
(b) electrical is extracted from water
(c) water is converted into steam to turn turbines and produce electricity.
(d) potential energy possessed by stored water is converted into electricity.
The harnessing of which of the following leads to the destruction of large eco-systems?
(a) thermal power
(b) tidal power
(c) hydro power
(d) geothermal power
The harnessing of which of the following leads to the destruction of large eco-systems?
(a) thermal power
(b) tidal power
(c) hydro power
(d) geothermal power
Write any two limitations of hydro-energy.
Read the information given below and solve the questions based on it.
Electric energy is produced in various ways like hydroelectric, wind power, Solar energy, bio-fuel, etc. These energy sources are inexhaustible, sustainable. Besides, it does not cause any environmental problem.
i. Above information is about which type of energy?
ii. Whether the fossil fuel is an example of this energy?
iii. Draw the flow chart of production of electric energy.
Give your opinion about whether hydroelectric plants are environment friendly or not?
Wind turbines with capacity are commercially available.
Find an odd one out.
In a windmill, the rotating blades drive the turbine and the turbine in turn drives the generator to generate electricity.
In a hydroelectric power plant, the potential energy in water stored in a dam is converted into kinetic energy.
Observe the given diagram and answer the questions.
- Which type of energy is generated?
- This power station depends on which factors?
- Is it environment friendly?
Complete the table.
| Advantages of hydroelectric power plant | Disadvantage of hydroelectric power plant |
Complete the following flow chart.
In a hydro power plant
The Hydroelectric capacity of Koyna dam is ______.
