Confusion in use of symbols- Is ampere written as A or amp. V=W/Q is often remembered wrongly. In questions where you have to check the resistance from the graph see what is plotted along the x and y axis. Reason why alloys are used to make elements of electric irons and heaters is not because they are insulators. 2. Units 3. 4. Formula Graphs 5. Resistivity 6. Change in resistance If a wire is folded(doubled on it) and made half its length‚ then the resistance does not become
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the fueled cars emissions and most people agree with that new alternatives must be used. Electric cars and Hybrid cars are the best-known alternatives‚ but the question is: which one is the best and more efficient. This report will talk about Electric and Hybrid cars in history‚ composition‚ comparison‚ and the future of cars‚ showing that the electric cars will be the future cars. 1- History: The Electric car wasn’t invented by a specific inventor; however‚ it was a result of a series of discoveries
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The Jack Welch Era at General Electric Abstract John Francis “Jack” Welch Jr. was Chairman and Chief Executive Officer of General Electric Company between 1981 and 2001. He was responsible for building a tremendous reputation for his company and the leadership that helped him achieve that. With combination of ruthless focus and contradictory commitment to staff involvement‚ Welsh delivered the growth figures that
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Electrical Machines and Drives for Electric‚ Hybrid‚ and Fuel Cell Vehicles Induction and switched-reluctance machines can provide the needed characteristics‚ but permanent magnet brushless machines offer a higher efficiency and torque density. By Z. Q. Zhu‚ Senior Member IEEE‚ and David Howe ABSTRACT | This paper reviews the relative merits of induction‚ switched reluctance‚ and permanent-magnet (PM) brushless machines and drives for application in electric‚ hybrid‚ and fuel cell vehicles‚ with
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Literature Review of Electric Vehicle Technology Yuling CAO S3445024 ABSTRACT In this paper‚ structure of electric vehicles is initially reviewed. Then electric vehicles propulsion system which consists of energy storage system‚ power electronic system and electric motor is reviewed in detail. Besides‚ performance of electric vehicles and advantages and disadvantages of this technology are also discussed. Key words: propulsion system‚ battery‚ converter/inverter‚ motor‚ battery. INTRODUCTION
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Chapter 1‚ Problem 1 How many coulombs are represented by these amounts of electrons: (a) 6.482 × 1017 (b) 1.24 × 1018 (c) 2.46 × 1019 (d) 1.628 × 10 20 Chapter 1‚ Solution 1 (a) q = 6.482x1017 x [-1.602x10-19 C] = -0.10384 C (b) q = 1. 24x1018 x [-1.602x10-19 C] = -0.19865 C (c) q = 2.46x1019 x [-1.602x10-19 C] = -3.941 C (d) q = 1.628x1020 x [-1.602x10-19 C] = -26.08 C Chapter 1‚ Problem 2. Determine the current flowing through an element if the charge flow is given by (a) q(t ) = (3t + 8)
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Date: December 28‚ 2009 Published Date: January 30‚ 2010 Managing the Global Economic Meltdown in a Consolidated Banking Sector of Nigeria: Rhetorics or Realities J. David Agaba and M.S. Tenuche Department of Political Science Kogi State University‚ Anyigba Abstract: This paper interrogates the implications of the global economic meltdown on the Nigeria Economy within the framework of a consolidated Banking sector. It investigates the ability of the Nigerian financial sector to withstand the challenges
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ENERGY AND THE ENVIRONMENT OPINION BRIEF Are electric cars actually bad for the environment? New research suggests that you have to drive an electric car a long‚ long way for it to be greener than a gas-guzzling vehicle POSTED ON JUNE 14‚ 2011‚ AT 10:30 AM A hybrid car is plugged into a charging station in San Francisco‚ Calif.: Electric cars may have bigger carbon footprints than their gas-guzzling competitors‚ according to a new study. Photo: Justin Sullivan/Getty ImagesSEE ALL
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speech Electric Cars Introduction Attention Getter: Central Idea: State an interesting new facts about electric cars. Preview of main points: Today I am going to talk about history of electric cars‚ where is electric cars today and finally we will explore what is to come of electric cars in the future. Body I. The history of the electric cars A) Where do the electric cars come from? B) When they was billed in the US? C) How they grow up in our country? II. Where are the electric cars today
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Razor E300 Electric Scooter Review The Razor electric scooter is a favorite for many people. However‚ one major downfall with it is that most are designed for kids rather than full-size adults. This makes it difficult for people who want to use it as a way to avoid traffic and walking to work each day. The E300 promises to make it a little easier for adults to have a scooter to ride. If this sounds ideal to you‚ perhaps you should check out our Razor E300 electric scooter review to make sure it is
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