that help people to be more productive‚ comfortable‚ and informed. In some places‚ electricity is generated by hydro-electric dams or coal-fired power plants. In others it comes from self-contained units called "dry cells‚" also known as batteries. Regardless of its source‚ the result is the same -- the flow of electrons through a substance. In order for electrical current to flow‚ three conditions must be met. One is presence of a substance that allows electrons to move‚ or flow‚ easily through
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also hurt us badly in the long run. The Primary reason we should switch to Electric Cars is because they could save the Environment we live in. Tam Hunt writes for the Future of the Electric car on Green teen media about Electric Cars having saver batteries. “Lithium batteries will probably start showing marginal improvements around that time: (Hunt) The Eco-friendly cars have safer batteries and other equipment. Electric cars are way safer than cars on gas. For example cars that run on file have
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OPERATING A FLEET OF ELECTRIC TAXIS ´ ´ BERNAT GACIAS AND FREDERIC MEUNIER Abstract. The deployment of electric taxi fleets is highly desirable from a sustainable point of view. Nevertheless‚ the weak autonomy of this kind of vehicles requires a careful operation. The way of managing such a fleet and the question of locating charging terminals for the vehicles are addressed in this paper. Methods for dealing with these tasks are proposed and their efficiency is proved through simulations. 1. Introduction
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Resistance in a Conductor: The electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor. Electrical resistance shares some conceptual parallels with the mechanical notion of friction. The SI unit of electrical resistance is the ohm (Ω).An object of uniform cross section has a resistance proportional to its resistivity and length and inversely proportional to its cross-sectional area. All materials show some resistance‚ except
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How far do you think an Electric Vehicle can travel on a single charge? To test the awareness and knowledge of the consumers regarding electric vehicles we asked this question and the options and answers are as follows: 50 - 100 kms 31.8% 100 - 200 kms 50% 200 - 300 kms 9.1% More than 300 kms 9.1% Are you aware of any of the following Electric Vehicles? The next question was asked on the awareness on the electric cars available in the Indian market. The options and answers
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3. Ohm’s law is represented by the equation I = V/R. Explain how the current would change if the amount of resistance decreased and the voltage stayed the same. Ohm’s law states current is dependent on voltage and resistance. As in any mathematical equation if we change one variable in the equation on one side and leave the other variable constant‚ the other side of the equation will change as well. In this case since current is equal to voltage divided by resistance. If we keep voltage the same
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When a current carrying conductor is placed in a magnetic field‚ it experiences a force and tends to move in the direction as per Fleming’s left hand rule. Fleming left hand rule: If the first and the second finger and the thumb of the left hand are held so that they are at right angle to each other‚ then the thumb shows the direction of the force on the conductor‚ the first finger points towards the direction of the magnetic field and the second finger shows the direction of the current in the
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an electromagnet used to generate a magnetic field in an electro-magnetic machine‚ typically a rotating electrical machine such as a motor or generator. It consists of a coil of wire through which a current flows. A magnetic field is a mathematical description of the magnetic influence of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude (or strength); as such it is a vector field. V. Questions: 1. Describe the direction
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Is the electric car the car the future? The main reason to buy an electrical car is the reduced CO2 emission. Reducing pollution coming from cars is a great way to fight global warming. It’s not only less pollution it also costs less. Each kilometer you drive in an electric car costs considerably less than with a comparable fuel car. The motor of an electric car also has a great advantage point with its speed. Electrical engines have a one gear box motor‚ it doesn’t have to shift gears. This
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Times named General Electric two years in a row the "Most Respected Company in the World." For any company this is a huge accomplishment and a great recognition. The Fortune poll voted them the country’s "Most Admired Company." The shareholders were somewhat concerned about Welch’s rumored retirement at the end of the year 2000. No one was sure if anyone would take Welch’s place and keep the financial growth that occurred during Welch’s era as leader for General Electric. Thomas Edison founded
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