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प्रश्न
Explain the principle of generating electricity from hydro energy.
उत्तर
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 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.
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संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
Water flowing in a river.
Name the form of mechanical energy, which is put to use.
Select the renewable and non-renewable sources of energy from the following:
Diesel
Name five renewable sources of energy.
What do you understand by the potential energy of the body?
What do you understand by the kinetic energy of the body?
What is the main energy transformation that occur in:
Photosynthesis in green leaves.
Name a device in which solar energy is converted into electricity state its two uses.
Give one example when:
Kinetic energy to potential energy.
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
