Electricity Essay Examples


Magnetism and Electricity
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Diagram Preliminary results. Voltage Length of wire Current Resistance? Preliminary Conclusion. From these results it is evident that two 1. 5 Volt batteries should be used because they produce the desired range of current. However, when the length of wire is 10cm the current is too high because the temperature of the wire increased instead of staying constant. Therefore the range of the lengths in the investigation is 20cm to 100cm. These results conclude that to produce the desired range…...
Magnetic Effects of Electric Current
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Magnetic effect of electric current is one of the major effects of electric current in use, without the applications of which we cannot have motors in the existing world. A current carrying conductor creates a magnetic field around it, which can be comprehended by using magnetic lines of force or magnetic field lines. The nature of the magnetic field lines around a straight current carrying conductor is concentric circles with centre at the axis of the conductor. The direction of…...
Can the world sustain our increasing dependency over electricity?
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Electricity is the means through which all the equipments we use operate. Though there are many sources of energy, almost all the equipments in use today need them to be converted to electrical energy before use. Electricity allows modern appliances and more convenience in our life. It has made life easier and quicker for us. Our current lifestyle is totally dependent on electricity so much so that our life would literally go to waste had there been no electricity. However,…...
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500-600 Word Electricity And Magnetism
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Resistors are often made to have a specific value of resistance so that the characteristics of the circuit can be accurately calculated. We can explain the flow of current through a resistor by comparing it to water flowing through a pipe. A pressure difference maintained across two ends of the pipe by a pump is like the potential difference, or voltage, across a wire maintained by a battery. The rate of flow of water, analogous to the rate of current,…...
Forecasting electricity consumption demand with weather
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Forecasting electricity consumption demand with weather: A comparison of regression analyses Abstract The major element of electricity resource planning is forecasting the upcoming electricity consumption. Precise forecast of electricity consumption is of primary importance in developing countries' energy planning. In the last decade, several new techniques have been used for energy consumption planning to accurately forecast future electricity consumption requirements. Consumers' living standards may vary depending on their weather sensitivity. Therefore, electricity demand is influenced by weather changes. This paper…...
Smart Equipment Monitoring
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ABSTRACT In our daily life we use electricity for different purposes, but we know most of people are waste the electricity. This system will be used to save electricity in efficient way in most of schools and agencies where so many people are doing study or work , but some of them leave their class or office without switching off lights and fans , from this we got idea to make a project that automatically switched off lights and fans…...
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INTRODUCTION1.1 Background of the StudyPiezoelectricity, derived from the Greek word Piezein, which means pressure, is the ability of a material to generate an internal electric field when subjected to mechanical stress or strain (Berlincourt, 1971). A factual connection of piezoelectric phenomena and crystallographic structure was published in 1880 by French physicists Pierre and Paul-Jacques Curie in which they discovered that when they compress certain types along certain axes of crystals, such as Quartz, Tourmaline, and Rochelle salt, a current of…...
Comparing Electrical Output of Batteries
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Real world application The whole purpose of this experiment was to determine the electrical output of several brands of AA, CC, AAA, DD batteries, comparing popular brands like Duracell and Energizer with less expensive and less known brands. The second purpose was to compare the output voltage power of batteries at room temperature versus at freezer temparature. And do see which one has more output voltage. this experiment will help consumers make good purchasing decisions when it comes to batteries,…...
Tripping in electricity supply
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Tripping means the interruption in electricity supply. An electric line is tripped if it starts carrying the fault current or it gets broken or due to several other reasons. It is a protective measure that essentially isolates the faulty lines from the rest of the healthy sections. So basically cascade tripping is tripping of protective devices to isolate the part or parts of the system to avoid the damage to the load and the system equipment. Sometimes tripping of power…...
Wind power is used to produce electricity a type of renewable energy
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Wind power is used to produce electricity, a type of renewable energy source that can be relied upon mainly to produce future renewable energy for the world. The world seeks to produce electricity from renewable sources for two main reasons. The first reason is to preserve the environment. It will not remove and plans to use wind power from the most important future plans in the production of electric power and by the coming years will change the paths of…...
Chemical Effect
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Conductivity of Liquid Electrolysis Electroplating 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…...
Electric Charge Lab
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Electric Charge Lab John Doe Physics 1130 Oct 26th, 2010 Objective In this lab we will investigate some properties of electric charge, conductors, and insulators using everyday objects. Theory A charged object is any object that has an excess of negative or positive charge. Most objects are neutrally charged and we don’t normally experience their charge properties. Rubbing objects together and transferring some charge from one to the other is one way to create charged objects. Like charges repel each…...
Electricity and Economy in Kenya
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ICT has been the main driver of Kenya's economic growth over the last decade, growing on average by 20 % annually, and propelling the combined transport and communications sector into the economy's second largest after agriculture. In chapter three I have discussed the impact of electricity on key economic sectors in Kenya which are agriculture, educational services, banking and communication services, microenterprises and tourism all of which are key pillars of Kenya Vision 2030. It costs approximately Ksh. 5,000 to…...
Electricity – Domestic Problem in Pakistan
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Electricity load-shedding in Pakistan is one of the biggest domestic problems faced by the country. Along with the problems that the power shortage brings for the society as a whole and for the inhabitants of the society the power failures seriously curbs the economic potential of the economy. Considering most of the medium and large scale industries of Pakistan depend on machinery that is run by electricity they are heavily dependent on the electricity supply, with the electricity supply cut…...
Chemical Effects of Electric Current
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EXTRA QUESTIONS: Q. Why the bulb glows when the electric current passes through it? Ans. Due to the heating effect of current, the filament of the bulb gets heated to a high temperature and it starts glowing. Q. Write a short note on: (a) LED Ans. LED- Light Emitting Diodes are used for lighting. There are two wires(called leads) attached to a LED. One lead is longer than the other. Longer lead - connected to positive terminal of battery Shorter…...
Electrical Conductors vs Insulators
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Every thing in the world is differentiable on the basis of its electrical conductance. Some things are called insulators and these substances never conduct electricity. they include things such as cold air,wood and plastic. Then there are things that conduct electricity and current flows through them, they are called conductors. examples of conductors are most metals like copper and steel. Other materials that are sometimes used as conductors are silver, gold, and aluminum. Copper is still the most popular material…...
Electric Bike
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I have actually added an electrical power help onto a GT mtb. With a 3 HP peak motor, it is far more effective than normal electrical bicycles. The basic motivation to develop an electric bike was to have an enjoyable and efficient and eco-friendly way to avoid my vehicle for short journeys around town, and also as a quiet path bike for exploring the hills. I desired to get some exercise - this bike can still be pedaled. When I…...
Modelling and Forecasting Electricity Consumption of the Philippines
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In the Philippines, electric power is becoming the main energy form relied upon in all economic sectors of the country. As time goes by, while different establishments and properties were built and developed, the demand for domestic electricity consumption within the country accelerates. Energy consumption is an important index of the economic development of a country. Rapid changes in industry and the economy strongly affect energy consumption. According to the International Energy Annual (IEA) in the year 2004, the Philippines…...
Electric Arc Flash
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The danger posed by Arc Flash incidents as well as their relative frequency of occurrences has led to greater concerns by various stakeholders in the Electrical industry. Wellman, & McClung, (2003) defines Electric arc flash (also known as arc blast) as an electrical explosion which occurs as a result of electric current passed through air when the insulation or isolation between two different conductors is no longer capable of holding the current. If high level of current is involved, tremendous…...
Does Electricity Move Better Through Thick Wires or Thin Ones
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My research is to determine if electrical energy moves better through thick wires or through thin wires. For this experiment I used 2 size D batteries, 2 flashlight bulbs, one 6.5 inch thin steel wool piece, one 6.5 inch thick steel wool piece, two 2 inch pieces of straw, and some electrical tape. Steel wool is a material made from thin fibers of steel made into a pad. (http://www.wisegeek.com/l-what-is-steel-wool.htm) There are lots of uses for steel wool. It can be…...
Electrical Circuit
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Conductor - is a material which contains movable electric charges. In metallic conductors such as copper or aluminum, the movable charged particles are electrons (see electrical conduction). Positive charges may also be mobile, such as the cationic electrolyte(s) of a battery, or the mobile protons of the proton conductor of a fuel cell. In general use, the term "conductor" is interchangeable with "wire. Insulators – are non-conducting materials with few mobile charges and which support only insignificant electric currents. Atom…...
Electric Generator – An Overview
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Early 20th century alternator made in Budapest, Hungary, in the power generating hall of a hydroelectric station In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge (usually carried by electrons) to flow through an external electrical circuit. The source of mechanical energy may be a reciprocating or turbine steam engine, water falling through a turbine or waterwheel, aninternal combustion engine, a wind turbine, a hand crank, compressed air,…...
Voltmeter and Ammeter
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Measuring Voltage Measuring the voltage between two points of an electrical current can be done with an instrument called a voltmeter. One type of voltmeter is a direct-current voltmeter. When taking a voltage reading the instrument is placed across the portion of the circuit that is to be measured. Direct-Current Voltmeter The direct-current voltmeter has a horseshoe shaped magnet, with a semicircular piece of soft iron attached to each end of the magnet. The iron is also magnetized. The iron…...
Sop for Masters in Ece
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Master's programme in electronics and communication engineering I wish to pursue my graduate studies at your esteemed institution, as I believe that a Masters degree will help me to realize my ultimate goal, which is to develop myself as a well educated electrical engineer and promote my existing career in related industries. As a high school student we had an electricity lesson in which we had to make a simple motor using wooden board, nails and coated wire and battery.…...
A Description of Alternating Current
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Abstract Alternating current (AC) electricity is the type of electricity that commonly used in houses and businesses throughout the world. While direct current (DC) electricity is flowing in one direction through a wire, the direction of the AC is moving in a back-and-forth motion. AC electricity is created by an AC electric generator, which is determining the frequency. The special about AC electricity is the voltage can be readily changed, so that will make it more suitable for long-distance transmission…...
The Importance of Electricity
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As long as the electricity is available, no one thinks much about it. The importance is realized when the power goes out. Whether it’s during the day or at night, electricity keeps our lives in order. It affects your business, your schedule and even your entertainment. Electricity runs everything in our everyday life. Gas stations can’t pump gas without it. Businesses have to close because their cash registers won’t work without it. Restaurants can’t cook food without it. Our lives…...
Hydroelectricity Essay
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Hydroelectricity Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy. Once a hydroelectric complex is constructed, the project produces no direct waste, and has a considerably lower output level of the greenhouse gas carbon dioxide (CO2) than fossil fuel powered energy plants. Worldwide, an installed capacity of 1,010 GW supplied hydroelectricity in…...
Electricity and Magnetism
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Human civilisation has dealt with magnetism for millennia, earliest evidence dating as far back as 1000 BC where the ancient Chinese civilisation discovered a naturally occurring magnetic ore, magnetite. This ore, commonly known as lodestone was used by the ancient Chinese as a geomagnetic compass, however, no one really knew what magnetism was at the time. For centuries on, we have had basic knowledge regarding electricity based upon static electricity found from rubbing amber and fur. However, up until the…...
History of Electricity
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Electricity is one of the greatest discoveries of man, this is simply because it brings light and it has open door to so many other discoveries and invention. Men of today actually depend on this form of energy to live and perform his or her basic duties. Machine of today depend mostly on electricity to function properly. Magnetism, which is an aspect of electromagnetism, is considered one of the fundamental forces of nature (Blume, 2007). Those forces are usually produced…...
The Electric Chair
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For over a century now, states in the United States have actually used the electric chair for a method of execution. The electrical chair was indicated to be a more humane variation of execution. Nevertheless, now people seem to believe the electric chair is an unconstitutional method to pass away. As years go by, individuals who have witnessed electrical chair executions have stated terrible and agonizing stories of death. Prisoners fought the straps of the chair as the high voltage…...
Fossil Fuel
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Fossil fuels consist of coal, petroleum and natural gas that are found under the earth’s surface, formed from billions of years of compression and decomposition of dead plant and animal matter. They are the leading source of energy for the mankind and are used for various purposes like energy for transportation, electricity, manufacturing process and also used in the manufacturing process of day to day items like plastic. Main fossil fuels are. 1. Coal Coal is a combustible black or…...
Resistors in series and parallel
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Resistors are used in various genuine life applications to carry out tasks that include: restricting the current that goes through a section of a circuit, presenting a voltage drop in a circuit, producing heat and the defense of elements of a circuit. It is crucial to compute the resistance of resistors so that the electrical circuits produced utilizing them will carry out in the manner that their producer wanted them to. If the wrong resistance/resistor is used then delicate parts…...
Atomic Structure Electricity
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1. Explain how being a metal, metalloid, or non-metal affects conductivity. Metal improves conductivity since Metals usually have small amounts of valance electrons which allow smoother movement through them. Metalloids can either improve or weaken conductivity by adding or removing an electron. Non-metals have poor conductivity because their valance shell haves 4 or more valance electrons. 2. Is the element Sulfur a metal or non- metal. Explain how you got your answer. Nonmetal, it has three physical properties of nonmetals/…...
Electric circuit
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Aim: To design a simple electrical circuit for Doctor's Surgery to let people know when to enter and also to research and learn more about parallel and series circuits. Introduction I am going to design an electric circuit for a Doctor's surgery. There are two types of circuit's Parallel circuit, and Series circuit. First I am going to explain what a circuit is and what the differences they have are. An electric current is a flow of charge. The charges…...
Solar Absorbers and the Future of Electricity
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Electricity is what we use to power things at home or at school. You can probably look around right now and see an electrical outlet or two. Everything that we plug into one of these outlets uses electricity. But where does this electricity come from? Right now we have a few ways to make electricity. Some are better than others. There are some scientists who are trying to find new ways to get electricity that are better for the planet…...
Electricity conservation at home
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Energy conservation means to reduce the quantity of energy that is used for different purposes. This practice may result in increase of financial capital, environmental value, national and personal security, and human comfort. Individuals and organizations that are direct consumers of energy may want to conserve energy in order to reduce energy costs and promote economic, political and environmental sustainability. Industrial and commercial users may want to increase efficiency and thus maximize profit. On a larger scale, energy conservation is…...
Potential Of Coconut Water as Source of Electricity
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One of the major problems in our country is energy shortage. There are many methods and proposals on how to conserve it such as the use of batteries. One of these is an electrolytic cell. It contains an electrolyte through which an externally generated electric current is passed by a system of electrodes (electrically positive electrode is called the anode and the negative electrode the cathode) in order to produce an electrochemical reaction. Such a reaction involves the transfer of…...
Electricity Bill Payment
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Chapter - 1 On average there is an aggregation of Passenger data in today’s Electricity Bill Payment . Information is soiled, redundant and difficult one. The technology uses if any are aging are frequency in compatible. An ideal state has complete aggregation and alignment. Scope: 1.1 Electricity Bill Payment is comprehensive web-based Bill Payment Software. It will design for better interaction between passenger, agent and Electricity bills Payment. Designing of Back-end Database The database of this act as the back-end…...
Wye-Delta Transformations
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Abstract On this experiment, analysis of resistive network by series-parallel circuits, the students will demonstrate the characteristics of series-parallel circuits by measuring and verifying the calculations of the resistance, voltage and current associated with the different resistive components of a series – parallel circuit. On this experiment, the students will also demonstrate the principle of basic electric circuit Law called Ohm’s Law as well as the use of basic principles involved in series, parallel and series-parallel. This experiment discusses about…...
Electricity & Magnetism
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Properties of Magnets: Magnet: any material that attracts iron and materials that contain iron Magnets attract iron and materials that contain iron. magnets attract or repel other magnets. In addition, one part of a magnet will always point north when allowed to swing freely. Magnetic Poles: Magnetic Pole: any magnet with 2 ends, each is called a magnetic pole. Magnetic poles that are unlike attract each other and magnetic poles that are alike repel each other. Magnetic Force: the attraction…...
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