Chapter 1 INTRODUCTION Background of the Study No generation is more at ease with online‚ collaborative technologies than today’s young people - “digital natives”‚ who has grown up in an immersive computing environment. Where a notebook and pen may have formed the tool kit of prior generations‚ today’s students come to class armed with smart phones‚ laptops and iPods. This era of pervasive technology has significant implications for higher education. Nearly two-thirds (63%) of survey respondents
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metal objects quickly‚ efficiently and with practically no cleanup. Setup • Electrostatic painting uses some very specific tools in order to paint a metal object using the attraction of oppositely charged electrostatic fields. First of all‚ specially formulated paint is mixed with a chemical catalyst and is then given a positive charge. The metal object that’s going to be painted (and it must be a metal object for this process to actually work) is then grounded by having a wire attached
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History of Electricity Our knowledge of electricity has started from very humble beginnings when you look at where we are today. Electricity has been around for as long as humans have. When lightning strikes ancient people may not have understood what it was or why it happened‚ but they at the very least witnessed it happen. Nature acted as a sort of catalyst to spark the curiosity of early people. It was only until sometime between 624 BC and 546 BC where an understanding of electricity began to
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Definition Of Static Electricity Static electricity is the buildup of electrical charges on the surface of some object or material. Static electricity is usually created when materials are pulled apart or rubbed together‚ causing positive (+) charges to collect on one material and negative (−) charges on the other surface. Results from static electricity may be sparks‚ shocks or materials clinging together. Static electricity is the accumulation of electrical charges on the surface
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Electricity generation is the process of creating electricity from other forms of energy. The fundamental principles of electricity generation were discovered during the 1820s and early 1830s by the British scientist Michael Faraday. His basic method is still used today: electricity is generated by the movement of a loop of wire‚ or disc of copper between the poles of a magnet.[1] For electric utilities‚ it is the first process in the delivery of electricity to consumers. The other processes‚ electricity
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Electricity and Magnetism Electricity Circuit symbols Potential difference The energy which is delivered to an electric circuit comes from the supply. The greater the potential difference of the power supply the more energy is delivered. Potential difference is measured in volts‚ which has the unit symbol V. Cells in series The more chemical cells that are connected in series the greater the potential difference that they supply. The potential difference of a number of cells connected
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Electricity and Magnetism History Electromagnetism Originally electricity and magnetism were thought of as two separate forces. This view changed‚ however‚ with the publication of James Clerk Maxwell’s 1873Treatise on Electricity and Magnetism in which the interactions of positive and negative charges were shown to be regulated by one force. There are four main effects resulting from these interactions‚ all of which have been clearly demonstrated by experiments: 1. Electric charges attract
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Why Save Electricity? With the rising costs and shrinking economy more and more people are acting responsible and seacrhing for reasonable ways to save electricity. The other reason apart from these are that saving electricty will bring down your electicity bills‚ save you money and decrease pollution. Although many people have shifted to renewable sources such as solar power‚ there are other electricty saving tips too which will help you to conserve power. Electricity Saving At Home Replace
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almost every nation all over the world. It is an expression of different feelings and emotion through lyrical words in an artistic fashion. Music conveys strong emotions not only from the person who is performing‚ but also evokes the same from its audience. It can create a harmonious ambiance in a certain environment. For that reason‚ music also serves as way of entertainment. Music is used in many celebrations of different occasions and events. In many other different countries all over the world
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Electricity is important to life. A vast number of machines which are invented nowadays cannot be operated without it. As a matter of fact‚ electricity is used mostly in four main areas: industry‚ public health‚ media and transportation. First of all‚ electricity plays an integral part in industry. Thanks to the invention of electricity‚ a lot of equipment has been invented including computers‚ subways‚ bulbs‚etc .... .Electricity is the crucial factor in operating most devices. As a matter of
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