Electric Cars An electric car is a vehicle which gets power from one electric motor or more‚ and an electric car use electrical energy to store batteries or another energy storage device. The developmental history of electric cars is very long‚ and the first automobile all over the world was an electric car. However‚ electric cars had two terrible disadvantages: the problem of energy technology and mileage limit around 20 century. The problems made electric cars disappeared from citizens eyes for
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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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Mechanism Description of an electric guitar Introduction An electric guitar is a stringed musical instrument played with fingers or a plectrum (pick). It consists of a body‚ a neck and a headstock to which usually six steel strings are attached. The magnetic pickups transform the vibrations of the steel strings into audio signals that are driven through an amplifier. Thus‚ the amplifier is also an essential part of the electric guitar. It was the need of amplified sound
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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 flowing of current through conductor produce heat. We are using this heat due to flow of current in our daily life as in electric iron‚ electric bulb‚ electric fuse‚ electric heater and more. Heating effect of electric current are below (i) Electric iron: In an iron the upper part is grooved. In this groove a coil is placed. Mica as an insulator is placed between the metal part and the coil‚ so that there is no electrical connection between them. Mica is a bad conductor of electricity but
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The Advantages and Disadvantages of Electric Cars Introduction to Electric Cars An electric car is a vehicle which is driven by electric engines. The engines use electrical energy which is usually stored in batteries. Electric car is a variation of electric vehicle (EV). EV speaks of any vehicles which are propelled by electric engines. “Electric car” is a general term for high-speed vehicles which are powered by electricity. In the United States‚ low-speed vehicles which are powered by electricity
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uniform E + + + + + + electric U = Fy = q0Ey a F=Eq0 E Wab = Fd = q0Ed d b ya yb ‒ ‒ ‒ ‒ ‒ ‒ = ‒ ΔU = ‒ (Ub ‒ Ua) F does positive work‚ U decreases positive charge moving in the opposite direction of uniform E + + + + + + electric U = Fy = q0Ey b Wab = Fd = q0Ed d E yb a ya F=Eq0 ‒ ‒ ‒ ‒ = ‒ ΔU = ‒ (Ub ‒ Ua) ‒ ‒ F does negative work‚ U increases negative charge moving in the direction of uniform E + + + + + + electric F=Eq0 U = Fy = q0Ey a Wab
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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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is to use the electric motor instead of gasoline one. An electric car is a car that powered by an electric motor rather than a regular gasoline engine. There are several major differences between gasoline and electric cars. First of all‚ “the electric motor will replace the gasoline engine” (“How Electric”‚ 2004). Secondly‚ “the electric motor is powered by a controller” (“How Electric”‚ 2004). Thirdly‚ “the controller gets power from the rechargeable batteries” (“How Electric”‚ 2004). In
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Electric power transmission "Electric transmission" redirects here. For vehicle transmissions‚ see diesel-electric transmission. [pic] [pic] 400 kV high-tension transmission lines near Madrid Electric power transmission or "high-voltage electric transmission" is the bulk transfer of electrical energy‚ from generating power plants to substations located near population centers. This is distinct from the local wiring between high-voltage substations and customers‚ which is typically referred
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