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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
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
State the energy changes in the following case while in use:
an electric toaster.
State the energy changes in the following case while in use:
a ceiling fan
What kind of energy is possessed in a situation when?
A fish moving in the water.
State the energy transformation on the following:
Electricity is obtained from wind energy.
Give one example when:
Electric energy changes to mechanical energy.
The solar cooker is an application of the ______ energy of the sun, while solar cells, solar lamps are applications of the ______ energy of the sun.
