Van De Graaff Generator Construction and Working :- It consists of a large metal sphere mounted on high insulating supports. An endless belt b‚ made of insulating material such as rubber‚ passes over the vertical pulleys P1 and P2. The pulley P2 is at the centre of the metal sphere and the pulley P1 is vertically below P2. The belt is run by an electric motor M. B1and B2 are two metal brushes called collecting combs. The positive terminal of a high tension source (HT) is connected to the comb
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VAN DE GRAAFF GENERATOR This is a machine that can build up high voltages of the order of a few million volts. The resulting large electric fields are used to accelerate charged particles (electrons‚ protons‚ ions) to high energies needed for experiments to probe the small scale structure of matter. Principle 1. Skin effect 2. Electrostatic induction 3. Action of points Construction A hollow metallic sphere A is mounted on insulating pillars as shown‚ and a pulley B is mounted at the centre
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Types of DC Motors and DC Generators MOTORS – convert electrical energy to mechanical energy Motors and generators are the most frequent used electrical machines. ❖ Generators action can take place when and only when‚ there is a relative motion between conducting wires and magnetic lines of force. ❖ Electric motor is in operation when it is supplied with electrical energy and develops torque‚ that is‚ a tendency to produce rotation. ❖ In DC generator‚ the armature winding is mechanically
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8/26/13 Share 1 Top 10 Best 10 Worst 10 Most Popular in India: Top 10 Most Polluted Cities in India More Next Blog» Create Blog Sign In Top 10 Best 10 Worst 10 Most Popular in India Top 10 Things in India. Top 10 Things in World. Best 10 in India‚ Worst 10 in India‚ Top 10 in India. 10 Most popular in India‚ 10 most popular in world. Top 10 Movies‚ top 10 persons‚ top 10 country‚ top 10 in sports Home Contact Us About Us Thursday‚ 4 July 2013 Popular Posts Top 10 Most Polluted
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Hi John‚ This email confirms your scheduled interview with us on Thursday‚ September 29‚ 2011 at 11:30 AM. Our office is located at 230 South LaSalle Street (at the corner of Jackson and LaSalle). When you enter the bank building‚ please proceed to the security desk and let them know that you are here for an interview with Ling Pyng. The security personnel will give you a temporary visitor’s pass (must be returned upon your departure). After you obtain the pass‚ the security officer at the
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Chicago is not one of the best places to live because of the rising crime rate. Recent statistics have shown that more people are leaving the city to move to Indiana because of this. If the crime rate were lower probably people would still stay in Chicago. Al Capone once said “In this town murders a form of entertainment” which means that Chicago has had a long history of crime and the numbers of crime that have taking place in Chicago are still on the rise. Some people might say Chicago is one of
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EMERGENCY DIESEL GENERATOR HEAT EXCHANGER TESTING C. M. D’Angelo M. E. Kerst Proto-Power Corporation 591 Poquonnock Road Groton‚ CT 06340 and S. M. Ingalls Northeast Nuclear Energy Company Rope Ferry Road Waterford‚ CT 06385 EMERGENCY DIESEL GENERATOR HEAT EXCHANGER TESTING C. M. D’Angelo M. E. Kerst Proto-Power Corporation 591 Poquonnock Road Groton‚ CT 06340 and S. M. Ingalls Northeast Nuclear Energy Company Rope Ferry Road Waterford‚ CT 06385 Abstract Nuclear
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Chicago-Style Citation Quick Guide The Chicago Manual of Style presents two basic documentation systems‚ the humanities style (notes and bibliography) and the author-date system. Choosing between the two often depends on subject matter and nature of sources cited‚ as each system is favored by different groups of scholars. The humanities style is preferred by many in literature‚ history‚ and the arts. This style presents bibliographic information in notes and‚ often‚ a bibliography. It accommodates
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learn English‚ but really I wanted Chicago because it is bigger and I have more things to do. Superficially‚ there are some similarities between Chicago and Cincinnati‚ but really there are a lot of differences. There are a few similar characteristics between Chicago and Cincinnati. Both Chicago and Cincinnati are located in The United States of America; Chicago is the principal city in Illinois and Cincinnati is one of the principal cities in Ohio. Chicago has a good education‚ and Cincinnati
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Downtown and Chicago Lawn This essay will focus on 2 prominent neighborhoods in the city of Chicago‚to demonstrate how socio-economic state and bad influence can affect many neighborhoods.Chicago is a big city home to 2.7 million people‚famous for it’s special hot dog‚wrigley field where one of the most known baseball team plays at the White Sox‚and also high rises;massive tall buildings usually businesses and/or cooperations. Chicago is filled with many trends from fashion to electronics
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