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प्रश्न
What is hydro energy? Explain the principle of generating electricity from hydro energy. How much hydro electric power is generated in India?
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उत्तर
The kinetic energy possessed by flowing water is called the water or hydro energy.
Principle of a hydroelectric power plant is that the water flowing in high altitude rivers is collected in a high dam (or reservoir). The water from the dam is then allowed to fall on a water turbine which is located near the bottom of the dam. The shaft of the turbine is connected to the armature of an electric generator or dynamo.
At present only 23% of the total electricity is generated by the hydro energy.
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संबंधित प्रश्न
Flowing water can rotate a turbine. Which type of energy is used up by the turbine?
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
Write any two limitations of hydro-energy.
Find an odd one out.
While producing hydroelectric energy, there is no pollution.
In a windmill, the rotating blades drive the turbine and the turbine in turn drives the generator to generate electricity.
Hydropower plants are located in the ____________.
Choose the correct statement.
The Hydroelectric capacity of Koyna dam is ______.
