first applications of electricity was the first incandescent light bulb in around 1870. The electric overhaul of society obviously brought many fresh new dangers with it‚ but it eliminated some of the old ones‚ like the naked flames of gas lighting that was commonly used in homes and factories then. The Joule heating effect that can be found in light bulbs is also present in electric heating. Electric heating has been thought of as wasteful in the past because in order to create that heat energy
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Situational and topical syllabuses 1 Situational and topical syllabuses Situational and topical syllabuses Mehrdad Amiri mehrdadenglish@gmail.com Islamic Azad University Science and Research Branch Course: Syllabus Design & Materials Development Professor: Dr. P. Maftoon Mini Lecture No: 1 Date: Sunday‚ October 3‚ 2010 1 Situational and topical syllabuses 2 Situational and topical syllabuses Introduction Situational syllabus seems to have been inspired by Hornby’s
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Electric Shock Anyone What Is This Module About? Nowadays‚ electrical appliances are commonly seen in every household. In your home‚ you probably have a television set‚ a radio‚ a karaoke player‚ a VCD player and other electrical appliances. But have you ever wondered how these appliances work? All of these need electricity to work. In this module‚ you will be introduced to the basic concepts of electricity. You will also learn about its uses. After going through the module‚ you should be able
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I. Physical Features Electric eels are not really eels‚ they are actually ostariophysians‚ but have a strong physical resemblance to true eels. . An electric eel is mostly tail. The internal organs are compressed into the anterior (front) 1/5th of the body‚ and the rest of the fish consists of the long‚ electricity-producing tail. The tail contains the electric organs: Sachs’ organ‚ Hunter’s organ‚ and main organ. Extending down the entire tail region is an elongated anal fin. There are no dorsal
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pushed away‚ or repelled‚ each other. The evidence showed that electric force made matter either attract or repel other matter. Electric force is caused by electric charge. Electric charge is a property of the bits of matter within atoms. Electric force can cause matter to attract or repel because there are two kinds of charge – positive and negative charge. The effects of electric force can be summarized as the law of electric charge: Pieces of matter with the same kind of charge repel
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Case Discussion Questions 1. GE used to prefer acquisitions or Greenfield ventures as an entry mode rather than joint ventures. Why do you think this was the case? According to our textbook‚ a firm can establish a wholly owned subsidiary in a country by building a subsidiary from the ground up‚ the so-called Greenfield strategy‚ or by acquiring an enterprise in the target market. Acquisitions have three major points in their favor. First‚ they are quick to execute. By acquiring an established
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The two most important issues that Lincoln Electric is faced with are as follows. First‚ the inability to meet customer demand because of the shortages in supply creates opportunities for competing firms to enter the industry. What resources and capabilities does Lincoln Electric have that can mitigate this threat of entry. Second‚ the emphasis put on the monetary incentive plan leaves the company vulnerable in economic hardships. How can Lincoln Electric continue to encourage competition and quality
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1 ELECTRIC MOTORS I. Introduction Electric motors are considered to be important mechanical devices. They usually convert the electrical energy coming from the mechanical device into its kinetic energy to make it work (Petingco and Resurreccion‚ 2011). In this exercise‚ the students were tasked to use an example of an electric motor‚ identify its parts‚ and make it work. All electrical motors are equipped with stator and rotor. Stator is known as the stationary part of an electric motor
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Overview of Automotive Industry Analysis The development of the automobile came from many different people from different countries. The development stated in 1769 in France‚ with the invention of a three-wheeler that was powered by steam (Gale‚ 2003). Then in 1800’s the first internal combustion engine was created in Belgian and the first gasoline powered vehicle was constructed in 1885 in Germany (Gale‚ 2003). Henry Ford built the first car in 1896 (Gale‚ 2003). He then revolutionized the industry
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motion control are called drives and employ any of the prime movers such as diesel or petrol engines gas or steam engines hydraulic motors and electric motors for supplying mechanical energy for motion control. Drives employing electric motors are known as Electrical drives. Fig 1.1 Block diagram of an Electrical Drive The advancement in electric drive system is very much related to the development in the power semiconductor devices technology. The introduction of the Silicon Controlled Rectifier
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