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प्रश्न
Name a device in which solar energy is converted into electricity state its two uses.
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उत्तर
Solar cell.
Its two uses are:
(i) All artificial satellites and space probes mainly depend upon electricity generated by solar cells.
(ii) Solar cells are used for lighting, operating water pumps, running radio and television sets in remote areas and traffic signals, etc.
संबंधित प्रश्न
State one important advantage and disadvantage each of using nuclear energy for producing electricity.
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
Name the type of energy (kinetic or potential) possessed by the following:
A moving cricket ball.
State the energy changes in the following case while in use:
an electric bulb
Select the renewable and non-renewable sources of energy from the following:
Water
What is hydro energy?
Is it possible that a body may possess energy even when it is not in motion?
State the energy changes which take place when:
Water stored in dams rotates turbine connected to a dynamo.
Give one example when:
Mechanical energy to heat energy.
Use your brain power!
How do we save fuel by using public transport?
