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प्रश्न
State the changes in form of energy while producing hydro electricity.
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उत्तर
The water in motion in a river or sea has the kinetic energy. The energy possessed by the flowing water is called the hydro energy. The most important use of hydro energy is to produce electricity from it.
Figure shows the principle of a hydroelectric power plant. The flowing water of the river is collected in a dam at a high altitude. The water stored in the dam has potential energy. When water from dam falls on the water turbine, the potential energy of the water stored in dam changes into its kinetic energy and this kinetic energy of water is transferred to the blades of turbine as the kinetic energy which rotates the turbine. As the turbine rotates, it rotates the armature of the generator (or dynamo) to produce electricity.
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संबंधित प्रश्न
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(b) What would have been the work done if he uses a lift in climbing the same vertical height?
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Name the form of mechanical energy, which is put to use.
Write the type of energy possessed in the following case:
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State the energy changes which take place when:
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