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Solar Cells
Solar cells convert light energy of the sun into electrical energy. They provide almost the complete power for required space crafts and artificial satellit..
Solar cells convert light energy of the sun into electrical energy. They provide almost the complete power for required space crafts and artificial satellit..Advantages of Using Solar Energy
It does not cause any environmental pollution like the fossil fuels and nuclear power..
Advantages of Using Solar Energy
It is present everywhere. It is available in plenty. It does not cause any environmental pollution like the fossil fuels and nuclear power. Solar cells last a longer time and have low running costs. In the first half of the twentieth century solar energy was use..
Formation of Our Solar System
Many scientists believe that our solar system was formed from a giant, rotating cloud of gas and dust known as the solar nebula. According to this theory, the solar nebula began to collapse because of its own gravity. Some astronomers speculate that a nearby supernova ..
Advantages of Using Solar Cells
It is present in abundance They have no moving parts and hence require little maintenance and work quite satisfactorily without any focusing device It does not cause any environmental pollution like the fossil fuels and nuclear power Solar cells last a longer time and have low r..
Solar Constant (S)
.A copper-constantan thermocouple is used between S 1 and S 2 .When sun's rays fall on S 1 , its temperature rises. The temperature of the junction (of the thermocouple) near S 1 increases. The galvanometer gives deflection. Now, current is passed through S 2 , so that temperature of S 2 becomes eq..
.A copper-constantan thermocouple is used between S 1 and S 2 .When sun's rays fall on S 1 , its temperature rises. The temperature of the junction (of the thermocouple) near S 1 increases. The galvanometer gives deflection. Now, current is passed through S 2 , so that temperature of S 2 becomes eq..Renewable or Non-conventional Energy Resources
Renewable energy resources are solar radiation, wind power, hydel power, biomass and nuclear power.They can be recycled and renewed by nature. These are normally pollution free. In India, unconventional energy resources are harnessed by different metho..
Inexhaustible Natural Resource
The inexhaustible natural resources are unlimited in nature, and they are not likely to be exhausted by human activities. Example are solar radiation, air, water, precipitation (rainfall, snow fall, etc.,) and atomic power..
Inexhaustible Natural Resources
Resources that are unlimited in nature and are not likely to be exhausted by human activities fall under this category. Solar radiation, air, water, precipitation (rainfall, snow fall, etc.,) and atomic power are some instances of such resources. Some of them may undergo tempor..
Energy
>In a hydro power plant electricity is produced from water. Hydro power plants convert the potential energy of falling water into electricity. Wind Energy Moving air is called wind Wind possesses kinetic energy Wind energy can be used to sail boats, grind grains, pump water and ..
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