SACE Stage 2 Physics Electric Fields 1 Solution 1. (a) State Coulomb’s Law. Any two point charges have acting on them equal sized oppositely directed forces acting along the line joining their centres. The magnitude of these equal sized forces is directly proportional to the product of the charges and inversely proportional to the square of their distance apart. The forces are attractive for unlike charges and repulsive for like charges. [pic]. e.g.
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Part 1: What is the relationship between the electric potential at a point in space and the distance from an electric charge? 1) Place a positive 1 nano-coulomb charge on the screen. 2) Turn on “Show numbers” 3) Turn on “tape measure”. 4) Use the tape measure to find and record the distance from the charge to the equipotential sensor. 1.88 m 5) Record the voltage as indicated on the equipotential sensor. 4.1v 6) Change the location of the positive charge to
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The Challenge of Designing Electric Cars Dr. Tobias Giebel Tobias Giebel 博士 Sahnghai EXPO‚ May 2010 Contents 内容 • Introduction Group Research and Volkswagen Research Lab China (VRC) 大众汽车集团研发中心概况和大众汽车中国研究实验室(VRC)介绍 • Volkswagens Strategy for Powertrains and Fuel 大众汽车的动力总成及燃料战略 • Blue Motion Technologies 蓝驱技术 • Hybrid Technologies 混合动力技术 • Electrotraction 电驱动技术 • Hydrogen Technologies 氢技术 • Modular Toolbox 模块化设计矩阵 • Conclusion 结论 Dr. Tobias Giebel Tobias Giebel 博士 The Volkswagen Portfolio
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In this essay I am going to be telling you about to what extent electric cars solve the fuel crisis. The critical steps are: 1. Evolve autos from gasoline/diesel to hybrid to plug-in hybrid. 2. Develop a battery that can run 200 miles on a 10-minute recharge. 3. Strengthen Briton’s electrical distribution system. 4. Recharge cars in garages‚ public places and service stations. 5. Build nuclear power plants to enlarge the supply of electricity. 6. Use all alternate sources of energy‚ i.e. wind
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Company Analysis of General Electric Running a company often centers on the idea of considering both positive and negative factors in order to then hand down executive decisions accordingly. To best understand the strengths and weakness of any given company‚ one must understand its base operations and the scope of industry in which the firm exists. In doing so‚ one would have a bigger picture of how the company operates and how success has been fostered in‚ as well as highlight in areas in which
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Lawford Electric Company – Case Analysis Critical Summary This sale was Lawford’s to lose. Lawford Electric Company’s ongoing‚ 8-year relationship with Bayfield Milling Company‚ coupled with the geographic proximity of the two businesses‚ gave them a competitive advantage upon which they were unable to capitalize. The price tag of the drive system for which Lawford prepared a competitive bid represented more than 17 years of Bayfield’s average annual purchases from Lawford.¹ Sales engineer
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Advantages and Disadvantages of Electric Vehicles Almost all households in this world uses a gas powered vehicles which causes the greenhouse effect or more known as the global warming. The global warming itself is caused by the emission of the gas powered vehicles. To prevent this‚ technologists have invented a vehicle that uses electricity. Although there are many benefits‚ in a developing countries‚ owning and using an electric car results in having both advantages and also disadvantages.
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Poole is the owner of Tri-Plan Electronics. One day‚ he wakes up in a hospital to find out that he lost his hand during a squib accident. What is worse is that he is told by the doctors that he is a human-appearing organic robot‚ something called an Electric Ant. Then he learns from a futuristic computer that his subjective reality is being fed from micro-punched reality tape in his chest cavity. He conducts experiments on himself‚ first by glazing over a couple of holes and then punching new holes to
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In electricity generation‚ an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electrons in the windings to flow through the external electrical circuit. It is somewhat analogous to a water pump‚ which creates a flow of water but does not create the water inside. The source of mechanical energy may be a reciprocating or turbine steam engine‚ water falling through a turbine or waterwheel‚ an internal combustion engine‚ a wind turbine‚ a hand crank
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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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