negative terminal of battery Advantages over CFL- LEDs consumes less electricity • LEDs glow even in weak current • CFL contain mercury which is toxic and hence CFLs require safe disposal Disadvantages over CFL- LEDs are expensive Q. Ionic compounds do not conduct electricity in solid form but their aqueous solution conduct electricity. Why? Or Common salt does not conduct electricity but its aqueous solution conduct electricity. Why? Ans. Ionic compounds (e.g.- Common salt) have strong electrostatic
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A World Without Power If you can‚ imagine a world without the simple‚ everyday privilege to have electricity in your home. Nikola Tesla is the single person responsible for giving this ability to the common world. Without Nikola Tesla‚ the world would be very different due to his inventions. His contributions pushed the world forward because of his alternating current‚ his wireless‚ and his energy related inventions. Nikola Tesla is not very well known for most of his inventions‚ even though
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Line & Beyond The materials‚ which allow electric current to pass through them‚ are good conductors of electricity. On the other hand‚ materials‚ which do not allow electric current to pass through them easily‚ are poor conductors of electricity. You know that metals such as copper and aluminum conduct electricity whereas materials such as rubber‚ plastic and wood do not conduct electricity. Conductivity of Liquid To test whether a liquid allows electric current to pass through it or not‚ we
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Thomas Edison’s contributions to society through the science of electricity are undeniable and extremely significant. However‚ in the competition between his promoted DC electricity and George Westinghouse’s AC electricity‚ Edison employed some seemingly questionable motives in an attempt to succeed in the three-fold motive; enhance his reputation as a leading scientist‚ reap the profits that would come‚ and protect his established reputation which would be ‘dented’ by losing. Edison’s reputation
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Vinegar as Alternative Battery An Investigatory Project Presented to The Faculty of the High School Department Surigao Education Center Km. 2‚ Surigao City _______________________________________________ In Partial Fulfillment of the Requirements in Physics IV _______________________________________________ By: Edradan‚ Dhaniel Jefferson Yaun‚ Mary Allyssa Concon‚ Leonel Galos‚ Jancirfil Jimena‚ Rimar Villarojo‚ Kerr March 2013 APPROVAL SHEET Vinegar as Alternative Battery Prepared &
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Economy mode‚ Medium mode‚ Lavish mode. In this particular system user will be able to decide how much electricity he needs and it will be set by the user itself. Such system will be beneficial and conducive as we can set a required amount of power to be used at specific times. Keywords: - Compact‚ Intelligent‚ Cost Effective‚ User-Friendly‚ Controllers I. INTRODUCTION Shortage of electricity is the major issue all over the world. This is the major motivation behind this research or project. Our
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Who Discovered Electricity ? From the writings of Thales of Miletus it appears that Westerners knew as long ago as 600 B.C. that amber becomes charged by rubbing. But other than that‚ there was little real progress until the English scientist William Gilbert in 1600 described the electrification of many substances and coined the term "electricity" from the Greek word for amber. As a result‚ Gilbert is called the father of modern electric power. In 1660‚ Otto von Guericke invented a crude machine
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not care less about the winner and focused on the new effects of Tesla’s creations. At the time‚ the 1890s saw a great change in the way electricity worked. America saw a massive growth in the number of AC electric companies and systems after 1893 (Ghose 1). AC energy could spread electricity across distances to places that were previously without electricity (Abengoa 2). Even Edison changed many of his systems to AC to keep up with the growing trend (Ghose 1). Tesla’s way of thinking about energy
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The researchers’ study involves exposing six rice plants to six volts of electricity. The goal of the study is to observe the effect of the electricity on the height of the rice plants compared to those that are not exposed to electricity. The researchers measured the initial height of the rice plants. The rice shoots were then placed and grown in six respective buckets. Three of the six buckets were exposed to electricity by using four D batteries and iron rods. The researcher will then record
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or minus‚ pole and move towards the positive‚ or plus‚ pole. Nevertheless‚ physicists define DC as traveling from plus to minus. In DC circuits‚ the electricity is always the same polarity‚ which means that in a two-wire circuit‚ one "wire"‚ or side of the circuit‚ is always negative‚ and the negative side is always the one that sends the electricity. There is no hum because there is no cyclic change in current flow. DC current is more effective for long-distance‚ high-voltage transmission because
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