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Showing posts with the label renewable sources

What Is Transformer

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The reason for transforming the voltage to a much higher level is that higher distribution voltages implies lower currents for the same power and therefore lower I 2 R losses along the networked grid of cables. These higher AC transmission voltages and currents can then be reduced to a much lower, safer and usable voltage level where it can be used to supply electrical equipment in our homes and workplaces, and all this is possible thanks to the basic  Voltage Transformer . The  Voltage Transformer  can be thought of as an electrical component rather than an electronic component. A transformer basically is very simple static (or stationary) electro-magnetic passive electrical device that works on the principle of Faraday’s law of induction by converting electrical energy from one value to another. The transformer does this by linking together two or more electrical circuits using a common oscillating magnetic circuit which is produced by the transfo...

We All Need Resources

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We All Need Resources: You can renew your lease when it runs out at the end of the year. You can renew your driver's license and license plate on your birthday. You can also renew a library book when your allotted time with it has expired. All sorts of things get renewed in our everyday lives when they 'run out' or expire. These are easy to renew because you don't have to create a new one, you just renew the ability to use whatever it is you are using. You can apply this same principle to natural resources. We use all kinds of natural resources: minerals, wood, coal, natural gas, wind, water, plants, animals and many more. Some of these are renewable and some are non-renewable. The difference is that some renew at faster rates than others, making them more sustainable than those that do not renew very fast

Renewable Sources

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ENERGY RESOURCES:          Energy sources can be classified into two types. They are renewable and non-renewable sources of energy. Non renewable:         Non renewable resources, such as fossil fuels and nuclear material, are removed from the earth and can be depleted. These resources have been the most used type of energy in the modern era. i) Coal:       Coal is a non renewable fossil fuel produced worldwide. It is formed when millions of years of pressure and heat turn the remains of prehistoric forests and swamps into coal. Coal is taken out of the earth either by deep mining(tunnelling underground) or strip mining(digging out layers of earth). It exists in different grades or qualities.       Coal is used predominantly to produce electricity and to provide fuel for industries that require large amounts of heat. Production of steel, cement and p...