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प्रश्न
State two advantages of using wind energy for generating electricity.
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उत्तर
Advantages of using the wind energy:
1. It does not cause any kind of pollution.
2. It is an everlasting source.
संबंधित प्रश्न
State the energy changes in the following case while in use:
a ceiling fan
Select the renewable and non-renewable sources of energy from the following:
Wood
State whether a solar cell produces a.c. or d.c.
State two disadvantages of using nuclear energy for producing electricity.
Explain the principle of working of the windmill for generating electricity.
State two advantages and disadvantages of using wind energy for producing electricity.
State the energy changes which take place when:
Burning of coal.
Give one example when:
Heat energy changes to kinetic energy.
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
