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Electricity Essay Examples

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Electricity & Magnetism

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…...

Wye-Delta Transformations

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 Bill Payment

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…...

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Potential Of Coconut Water as Source of Electricity

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 conservation at home

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…...

Solar Absorbers and the Future of Electricity

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…...

Electronic electroscope

Abstract-- An electroscope is the instrument utilized to discover charged bodies. Here, an electronic version of the scope that is more sensitive as compared to its traditional equivalent and which helps indicate the polarity of charge has actually been described. This circuit consumes really low quiescent power and dependably shows charge induction and detection. The polarity of charge is shown through LEDs (green LED suggests positive and red LED negative). In this job report, the in-depth circuit diagram of the…...

Atomic Structure Electricity

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/…...

Resistors in series and parallel

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…...

The 'War of Currents'

The competition between George Westinghouse and Thomas Edison to supply electricity to cities in the late 1880s is often called the 'War of Currents', as this battle ultimately decided which type of current became the standard for the generation of electricity today. Due to different advantages and disadvantages, Edison promoted direct current (DC) for electric power distribution, whereas Westinghouse and Nikola Tesla both advocated alternating current (AC). Edison's direct current was initially the standard for the United States for electricity…...

Fossil Fuel

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…...

The Electric Chair

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…...

The Case of the Unknown Industries

In the Case of the Unknown Industries, we matched several industries with their corresponding balance sheets. We used several different methods to come up with our conclusion. An important factor we had to remember was the economic state industries were in their respective year. A. Online Retailer This set of data belongs to the online retailer industry. The most significant categories that helped with our decision was the low inventory for a retail business and the relatively high inventory turnover.…...

History of Electricity

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 Economic Consequences Of Load Shedding

Gavin van der Nest, tralac Researcher, talk about the current electrical power crisis in South Africa Perhaps among the most pressing challenges dealing with the South African economy in 2015 is preserving the structural stability of its electrical energy generation network. The power system has come under serious strain due to maintenance backlogs and a failure to bring brand-new creating capacity timeously online to match economic and social development. This has actually caused electricity demand at times overtaking supply. Consequently,…...

Electricity and Magnetism

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…...

The Importance of Electricity

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…...

A Description of Alternating Current

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…...

Sop for Masters in Ece

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.…...

Voltmeter and Ammeter

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…...

Electric Generator - An Overview

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,…...

Electrical Circuit

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…...

Does Electricity Move Better Through Thick Wires or Thin Ones

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…...

Experiment AC circuits

Discussion In the experiment AC circuits, the purpose was to see the effect that a capacitor, resistor, and inductor have on the voltage, and current of a circuit. We created circuits with 2 resistors, a capacitor and a resistor, and then a capacitor, resistor, and an inductor. The circuits were then hooked up to a function generator, and oscilloscope to find the voltage across certain frequencies and then calculate the peak current, capacitive reactance or the inductive reactance, and phase…...

Power Generators

Power generators have limited capacities. When demand of electricity in a certain area exceeds its generation, the supply is to be cut temporarily as a method of reducing the demand on the generators. This temporary reduction in electricity supply is known as load shedding and less formally power cut. Peak load shedding hours are early evenings and mornings when most bulbs are lit and most home appliances are in use. Power is a very important daily need of modern life.…...

Electric Arc Flash

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…...

Modelling and Forecasting Electricity Consumption of the Philippines

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 Bike

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…...

Electrical Conductors vs Insulators

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…...

Chemical Effects of Electric Current

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…...

Electricity Demand and Supply Pakistan

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…...

Electricity - Domestic Problem in Pakistan

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…...

Electricity and Economy in Kenya

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…...

Electric Charge Lab

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…...

Chemical Effect

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…...

Wind power is used to produce electricity a type of renewable energy

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…...

Usage of Electrical Technology and Devices

Abstract Many aspects of electrical technology usage, such as power, electrical machines, control, electronics, communication system and instrumentation are all based on electrical circuit theory. Therefore, the basic electric circuit theory is one of the most important aspect to look into for a brief analysis of the above-mentioned examples of applications. Most of these applications requires interconnection of electric devices. An interconnection is thus termed as electric circuit. This paper will provide an overview on basic electrical circuit analysis. What…...

Importance of Cell Balancing for Quality Of Product

Cell Balancing Overcharging, and over discharging, of Li-ion cells causes permanent damage, also is a significant safety issue. Therefore, reliable control of each cell voltage is mandatory. Battery cells are connected in parallel and in series to obtain greater energy capacity and voltage. The parallel connections are simple to operate since the cells emerge as a full single cell, and cell management is simple. The current divides corresponding to the internal resistance of the individual cell, and the terminal voltage…...

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