Essays On Electricity

Advantages And Disadvantages Of Electricity
Argumentative Essay On Renewable Energy
Electricity Energy Story
History of Electricity Essay
Energy Sources Essay
Importance Of Electricity Essay
The Future Of Electric Energy
Essay On How To Reduce Electric Bill
Electricity Generation Essay
Persuasive Essay On Renewable Energy
The Importance of Electricity
Energy and Power Essay
Essay on Energy Crisis
Essay On Energy Consumption
Electricity Access Essay
The Effect Of Electricity On Our Lives
Essay on Wireless Electricity
Essay on Electrical Hazards
Static Electricity Essay

1. Advantages And Disadvantages Of Electricity
morning. There are lot of advantages from the invention of electricity. You can transport it
wherever you go so it is very transportable. It is really quiet, so you do not have to hear a loud
engine running while it is on. Its fast, it is the speed of light so you can not even really tell that it
is running. It produces all sorts of things, almost everything now days. Also you can store it for
later. The use of electricity is a renewable energy that means it gets its energy from sunlight, wind
power, water power, and geothermal power. C02 is not a factor when it comes to electricity being
generated. Another advantage behind electricity is that almost everybody relies on it. Hospitals,
police, armies and governments all rely on it a lot, they rely on it because they needs the power to
assist, govern, communicate, and protect.
There is seven different energy sources when it comes to electricity and they are hydro, oil and
natural gas, coal, nuclear, biomass, solar, wind. The advantages for hydro are that it has
renewable energy. Water is freely available in large sizes. It is clean and it does not pollute the
whole environment. The water that is stored at the dams can be used at farms and can be used for
the humans. Dams can be used that they can control floods. For oil and natural gas present can
still be available in large groups. This can be transformed to the location that it is used at. Then for
coal there are plenty of resource available for almost 200 years. This can
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2. Argumentative Essay On Renewable Energy
Renewability
For nearly everyone on earth, fossil fuels are a part of our daily lives. Some of the more obvious
places to find petroleum products would be gas and diesel in cars and trucks, but it is in more than
just your tank. Without fossil fuels, we would not have things such as plastic to make a wide
variety of things such as tires, kayaks, or even computers. The question remains, do we need fossil
fuels?
In this day and age, we have new energy sources that could be used to power our homes and
transportation. Wind and solar power are used all over the world, but are still used far less than
fossil fuels. Most would say it's not reliable or it doesn't make any profit. While both statements are
true, it doesn't mean we can't make a better future using renewable energy. In fact, the only reason
we don't use renewables for everything is that we don't want to change. The hard truth is we need to
change. Fossil fuels are great right now, but if we run out, humanity must have another source of
energy.
Renewable energy may seem like a daunting task, but the benefits to humanity could be incredible.
Public uses of renewable energy range from transportation all the way to heating and cooling.
Everything we use could become less explosive and less expensive. Cities with a high concentration
of people could become safer and healthier places to live. Transportation could be converted to
electricity dramatically, improving smog conditions. Global warming may or may not
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3. Introduction: Hydroelectric power plant is one of the major power plants all over the world in
order to create electricity. It is also one of the best renewable energy sources on the planet earth.
In ranking, Canada is the third largest country to produce hydroelectricity power. The efficiency
of this power source is 90% and this is very impressive as the percentage of efficiency is very
high. Hydro power plants generate 24% of the world's electricity. More than 1 billion people are
associated with hydro power plants as they use the power supply from hydro power plants. Where
does it come from? / Source: Hydropower became the source of generating electricity in the late 19th
century. Electricity generated by hydro power plants is simply...show more content...
In short, the water which is captured in a dam flows through a tunnel which has turbines at the
end. The speed of water turns the turbines, and following to that, the turbines turns the generator
and create electricity and send it to the transformers. The transformers then supply the electricity
in a designated area. To elaborate, dam is one of major parts to discuss about firstly. The process
of a dam is to store water by creating a large reservoir. This reservoir could be a lake or any other
natural water source. The dam is most likely located at higher level ground than the turbines of
the power plant. The dam contains gates at its bottom to control the water flow. As the gates
open, the water stored in the dam flows downstream as gravity pulls everything down or towards
the earth's surface. The falling water goes through a pipeline called penstock. This pipeline leads
to the turbines in the hydroelectric power plant. Much water flow in the pipeline means greater
pressure from water. As the water comes down the pipeline, it hits the blades of the turbines and
makes it rotate simultaneously. The speed of the rotational blades depends on the speed of the
water flow. As a result, much pressure of water flow will rotate the blades with a higher force and
vice versa. Francis Turbine is the turbine that is most common for building hydroelectric power
plant. This type of turbine looks like a big
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4. Electricity Energy Story
Energy Story, Hands–On Science with Squishy Circuits, and Conducting Solutions all have one
important similarity: they all explain how electricity works! These three sources explain very
different things, but they always end up coming back to the main objective of electricity. Energy
Story explained how atoms function, and how they, as a whole, are passed through circuits to create
electricity. Conducting Solutions explains how liquid solutions including Ammonia and Vinegar are
stronger together, and create a stronger conduction of electricity. Hands–On Science with Squishy
Circuits visually shows how two batches of homemade play–dough, one made with salt, and the
other with sugar can be made into circuits when used together. Energy Story uses visual
representation to explain how atoms function, and then move further to explain how atoms...show
more content...
In this video, AnnMarie Thomas shows how two different types of homemade playdough can help
you change your students or children into circuit designers. You make on batch of playdough using
salt, and then another substituting salt with sugar. First, you take a battery pack, and plug the two
wires into two separate pieces of playdough containing salt, or the positive playdough. You can then
stick a tiny LED light into the playdough, and it will light up, but when the two positive doughs are
pushed together, you create a short in the circuits. This happens because the electricity wants to run
through the two positive doughs, not one positive dough. To prevent this from happening, you take a
piece of the sugary dough you made, or the negative dough, and place a clump of that in between to
two positive doughs. However, the sugary dough is 150 times more resistant to electricity than the
salty dough, due to the ions in the sodium chloride in the salty dough. The sugary dough then creates
a barrier, successfully making a functioning
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5. History of Electricity Essay
The oldest civilization known to understand electricity was the ancient Greeks because of the
electric fish in the Nile River. In the 1600's William Gilbert an English Physician studied electricity
and magnetism; studies were continued by other researchers such as Robert Boyle and Benjamin
Franklin. Then by the 1800's scientist Allesandro Volta had identified a way to harness electricity in a
battery format and he had also discovered the chemical reactions that electricity could produce. Volta
also invented the first device with a steady current known as the electric battery, and he also created
the first transmission of electricity by linking positively–charged and negatively–charged connectors
and driving an electric charge through them....show more content...
How is electricity made? Electricity can be generated in power plants fueled by fossil fuels such
as coal. 1. The first step of generating electricity in a power plant is to put coal in to a machine
called pulverizer which grinds the coal into a fine powder. 2. The coal powder mixes with hot air,
which helps the coal burn more efficiently, and the mixture to the furnace. 3. The burning coal heats
up a boiler creating steam. 4. Steam released from the boiler powers and engine called a turbine,
transforming heat energy from burning coal into mechanical energy that spins the turbine engine. 5
The spinning turbine is used to power a generator, a machine that turns mechanical energy into
electrical energy. This happens when magnets inside a copper coil in the generator spin. 6. A
condenser cools the steam moving through the turbine which and it converts into reusable water.
(Source C). (Source D) After that process the power plants send out the electricity through the power
lines using a transformer which adds voltage to
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6. Energy Sources Essay
Introduction Electricity is generated by the use of energy. Before going further, it will be
necessary to talk briefly on what energy is all about. In this modern day, the standard scientific
definition of energy is the capacity to do work, which means ability to move an object against a
resisting force (Boyle 2003). According to (Beggs 2009) a physicist or an engineer will best describe
energy in a form of an illustration. I.e. consider a mass of 1kg which is raised 1m above a surface
on which it was originally resting. Therefore, in order for the weight to have been lifted above the
surface, a machine or someone must have performed work. Simply, what this means is that, to have
raised the mass from a low level to a higher level, work...show more content...
Examples of these fuels are coal, oil and natural gas. Because these fuels took millions of years to
form, there are growing concerns that once used up; it will not be possible to replace them. Which
means attentions will have to be shifted to the renewable energies in order to address the problem
in the future because these fossil fuels currently supplies nearly 80% of the world's current energy
consumptions (Boyle 2003). Looking at the three types of fossil fuels, Oil as a liquid fossil fuel and
natural gas as a gaseous fossil fuel are both formed from the remains of marine microorganisms.
Oil and natural gas have been called the noble fuels, by comparison with noble metals such as
gold and silver. These two are amongst the most concentrated natural stores of energy, and being
fluids, made them fairly easy to transport from one place to another and very convenient to use.
On the other hand, coal is a solid fossil fuel which is formed over millions of years by decay of
land vegetation. They can be referred to as ignoble fuel because they are particularly unattractive
energy source. In comparison to oil and natural gas, coal is less convenient to transport, store or use.
It produces up to twice the amount of carbon dioxide for the same useful heat, and this is by no
means its only undesirable environmental effect. But even with is environmental effect, coal is still
widely
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7. Importance Of Electricity Essay
Electricity is one of the most important blessings that science has given to mankind. It has also
become a part of every person's life and one cannot think of a world without electricity. We utilize
electricity in our day to day life, in enormous ways. It is used for lighting, fans, electronic gadgets
and domestic appliances like using electric heaters, A/C, refrigerator and many other appliances.
All these provide comfort in life. In factories, large machines are running because of electricity.
Essential items like food, cloth, paper and many other things are the product of the factories who
runs on electricity. Modern means of transportation and communication have been revolutionised
by electricity. Electric trains and battery cars are quick means of transportation. Electricity also
provides means of entertainment like radio, television and cinema, cell phones which are the
most common and popular forms of entertainment are the result of electricity. Modern equipment
like computers and robots have also been developed because of electricity. Electricity plays a
pivotal role in the fields of medicines and surgery too. The use of electricity is increasing day by
day. As, the demand and the consumption of the electricity is increasing we must explore option
for the generation of the electricity. Now in a modern world we cannot rely on sources as coal and
oil. If we keep on relying on these sources we will not only run out of these natural sources but also,
we will have to face
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8. The Future Of Electric Energy
Upon the first discovery of electricity, the subjects of electricity and magnetism would go on to
revolutionize life as we know it. With the rudimentary work completed by the leaders within the
field, such as Benjamin Franklin or Nikola Tesla, these brilliant scientists laid the foundation that
would go on to become arguably one of the most important aspects of our forever–changed society.
Although we have learned to incorporate electricity, it has many uses within our lives. Electric
energy is at the forefront of our world's business, engineering, and medical sectors of the workforce.
Public transportation is rapidly getting on the radar for developing new technologies to better serve
consumers. With great emphasis being placed on living more eco–friendly lives and the increasing
costs of energy, these more efficient transportation models will change the face of history. One
major point driving this initiative is the pull back of fossil fuel consumption, and the reduction of
greenhouse gases being released into our atmosphere. Both historians and energy experts agree
that as society advances, there is a need for more concentrated, powerful forms of energy, like
rocket fuel instead of gasoline. Electric vehicles are one of these technologies to hit the consumer
markets. Companies such as Toyota and Tesla are beginning to manufacture both hybrid and
electric vehicles. Electric cars work on the basis of expending the energy stored in a battery (or
series of batteries) for
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9. Essay On How To Reduce Electric Bill
Practical Ways to Reduce Your Electric Bill Every Month The cost of electricity like other
expenses, have gone through the roof, but it doesn't have to be that way. There are simple ways of
taking action to bring down your electric bills. These Simple Steps Can Make a Difference Saving
You Money Every Month Use energy–efficient bulbs instead of the regular ones to reduce the
amount of watts you use. Make sure you clean your appliances and your air conditioner from dirt
and dust every year so they don't have to run harder. Use your stove or a crock pot in the summer
instead of your oven. Turn off lights, TV, radios, and computers when you're not using them. Make
sure your heating ducts, furnace and water heater is cleaned every...show more content...
Buying a New Furnace or Caring For the One You Have In order to keep your furnace running
efficiently, you will have to get it cleaned along with your heating ducts every year so it will run
smoothly. The dirtier the heater, along with the heating ducts, the harder it will have to run and it
will cost you more money in the long run on heating bills. When replacing your old heater, make
sure it's energy–efficient, it will save you lots of money in the future. Buying a New Refrigerator
When looking for a new refrigerator, look for one that is energy efficient. Make sure to clean the
coils under the refrigerator or back of it to clear dust and dirt off. Do this twice a year so it runs
more efficiently to keep the energy costs down. Cooking During Summer Months When it's hot
and humid, using your oven will heat up your home and if you have your air conditioner on, it
will run harder to keep your home cooler. As a result, it will cost you more on your electric bill.
Instead, use a crock pot or just use the stove, that way you aren't using as much electricity. When
Using Your Computer and Other Electronics After you are done using your computer, be sure to
shut it off so you don't waste electricity. If there is a radio or television in your home, shut that off
as well if it's not in use. These are simple ways you can save on your
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10. Electricity Generation Essay
Electricity is a secondary form of energy, the primary being fossil fuels, which are used to generate
it. The world's production of electricity was twelve trillion kilowatt hours in 1997, and is expected
to be close to twenty–one trillion kilowatt hours by 2020. (Fay and Golomb, 2002, 16) This is a
cause of concern because based on the United States Department of Energy's International Energy
Outlook 1997 the world's electricity generation is primarily (63%) from fossil fuels, which release
large amounts of carbon dioxide into the atmosphere when burned. The unnatural amount of carbon
dioxide in the atmosphere is already beginning to make some changes in our weather patterns, and
predictions for the future look grim. Therefore,...show more content...
(Urone, 2001, 479) The generation of an electric current is done using Michael Faraday's discovery
of electromagnetic induction. This method includes magnets, copper wire (conductor), and motion
as the key components to electric current generation. Based on Michael Faraday's discovery, the
movement of a magnetic field relative to a conductor, or the movement of a conductor relative to a
magnetic field will induce a current in the conductor. Fossil fuels, nuclear, hydro, and wind all serve
the same purpose of creating the motion needed in the electricity generation process.
In the case of wind power, the force from the wind spins the arms of a windmill creating the
motion needed to generate electricity. This type of energy source is termed renewable because it
can furnish energy for all time within our consideration. (Ristinen and Kraushaar, 1999, 90) The
wind currents are generated by solar energy from the sun that warms the air. The movement of
denser cold air toward the ground, and warmer air upward creates the wind currents needed to drive
the windmill, generating electricity. (Ristinen and Kraushaar, 1999, 133) An analysis of windmill
performance shows that no more than 59% of the kinetic energy of the wind is recoverable as
mechanical energy. Therefore, modern windmills can attain an efficiency of perhaps 50 to 70% of
the theoretical maximum. (Ristinen and Kraushaar, 1999, 135)
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11. Persuasive Essay On Renewable Energy
The time has come, we're running out of fossil fuels and we need an alternative. That is where
renewable energy comes in; The best part about it is that it is renewable so it will always be
available to us, and we can acquire this energy through solar, water, and wind power. There is a lot
of controversy as to whether we should rely on renewable energy, because some say it is not cost
effective. However renewable energy can pay for itself, is available nearly everywhere through
various methods of obtaining it, provides numerous amount of jobs and economical benefits, and it
will not harm our environment.
One of the biggest, but not most obvious reasons for switching to renewable energy is that it will
pay for itself. One of the first things people think about when they make an investment is price;
Sure acquiring renewable energy such as solar power right now may not be cheap but as a matter of
fact during the duration of 2009–2014 the price of solar power dropped 78%(Gardiner)! The best
part about solar power is that it is available to nearly anyone. Likewise wind power has also dropped
58% in price and now is among one of the cheapest sources of power in the United States
(Gardiner) even though wind power is not available to the ordinary citizen. Switching to renewable
energy will save a boat load of money as the article "Committing to Renewable Energy Will Pay
Off" states "Investing in a renewable energy as the source for electricity in our future will save 10
times the
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12. The Importance of Electricity
What is Electricity?
Electricity is one of the most powerful forces in our lives. As a matter of fact, it can even kill you.
The most vital part of electricity is called electric energy. This is what we commonly think of when
we hear the word electricity. "Electricity" reminds us of anything that we plug into an electrical
outlet in order to make it work, such as lights, refrigerators, video games, microwaves, and
computers. Scientists discovered ways to produce electric energy in large amounts in order to make
heat, light and motion. These discoveries have improved our lives greatly and for many of us it
would be difficult to picture what life would be like without electricity.
What Are Some of the Problems With Electricity and...show more content...
Electrical signals from our brain causes our muscle movements. Electrical signals cause each
heartbeat. One of the most important forms of electricity is in electrical current. During the
industrial revolution of the 1800s, people began to find ways to use electricity to do work. Today
electricity is used throughout our homes, at work, in communication, in transportation, and in
medicine and science. Electrically powered devices are prevalent. Relatively cheap electricity has
made electrical appliances, machines, and other devices possible.
Why is Electricity Important?
Everything in our world is powered by electricity, it is the most common source of power and it
convenient. Things move faster with electricity.
Electricity is important because it is used in everday life. You use electricity for light, heat, medical
necessities, such as ventilators, respirators, etc and many other things. We would be lost without
electricity.
|Why Power & Electricity World Africa? | |
|Because the entire energy value chain faces critical business, investment and technology issues. | |
|Africa's governments are seeking to attract investment | |
|Energy regulators need
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13. Energy and Power Essay
Energy and Power
Although I am surrounded by energy and power, I never really knew just how much they mean to
the world. However, after learning about the fundamentals of energy, I have a much deeper
understanding of their magnitude. In this paper, I will reflect back on what I have learned about
energy, and how it has affected me personally. For instance, I know now that the power I am using
to sit here and type is roughly equivalent to the power used by an incandescent light bulb, but that is
only the beginning.
Energy is all around us, but to create power, we need to harness it. I never thought about the fact that
everything on earth has some type of energy, and until this course I never even knew the six different
types....show more content...
I never anticipated that the things I learned in just the first few weeks of this course would lead me
to change my own daily activities. Reading about the amounts of energy consumed in past years, and
projections for the future, made me realize we need to start conserving now ("Environmental..."
2001). When I learned how much energy the United States consumed in a single year in BTU's, I
began conserving my energy much more than I used to. I never knew that our country consumed
more energy than is given off in the explosion of a hydrogen bomb ("Annual..."2004). Therefore, I
am much more careful about turning off my lights, conserving my heat, and taking shorter showers.
I would much rather know that I am doing my part to conserve the precious energy that we have,
than know that I am lavishly wasting it. Until this course, I never would have understood the
importance of energy conservation, but being able to convert the amount of energy that I use into
different medias, such as horsepower, watts and Calories, has shown me just how much of a
difference a single person can make (Texas, February 2005).
As a single student in EGEE 101, the knowledge I have gained so far has only affected me, and
maybe a few of my closest friends. As a class, I believe we can make a large difference, and as a
campus, an even larger one. Learning new things about energy everyday
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14. Essay on Energy Crisis
Energy Crisis
Energy is important to our nation for many reasons. It is a key economic driver. It offers new market
opportunities for business. Providing energy to our nation has been an exciting challenge in recent
years. Many changes have been constant throughout that period. The past tells Americans that
predicting the specifics of the energy future for our nation with great accuracy would be unlikely.
Americans get their energy from different types of resources. With all the different resources
Americans believe that an energy crunch shouldn't happen.
The crisis is a nationwide energy discontent in which natural gas rates have soared to the highest
level in 15 years, and OPEC has slashed its oil output again to keep...show more content...
More than half of the growth for natural gas, over the next 20 years, will come from the electric
generation market. The use of natural gas in this country could increase by more than a third in the
next 20 years. In the electric power generation industry, natural gas could increase as much as 250
percent for power generation.
The United States now has two percent of the world's proven crude–oil reserves. Most of the
American produced oil comes form old wells, where the output declines over the years. Production
costs are lower overseas, so it is cheaper to buy from OPEC nations than from many American
suppliers. Increasing energy supplies requires not only wells but new pipelines to transport oil and
natural gas. In 1998, the United States consumed 9.8 million more barrels of oil a day than it
produced.
The economic miracles of the 20th century were powered by fossil fuels. The 21st century may be
seen by an equally dramatic change from fossil fuels, and the environmental chaos they brought.
The result may be less than an energy revolution. The cost of fossil fuel energy produced is
comparable to that of electricity. A fuel cell cleanly and quietly combines oxygen and hydrogen to
produce electricity. Fuel cells could one day sit in thousands of basements producing power and hot
water, without fossil fuels. Some fossil fuel lobbyists still argue that it will be difficult and
expensive to find an alternative to oil and coal.
Nuclear
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15. Essay On Energy Consumption
The overall structure is to calculate the total electricity consumption and convert to CO2 emissions
by applying conversion factors of electricity. There are normally two methods for carbon emission
calculation (WBCSD/WRI,2004). One is top–down method. Energy consumption data is gathered at
an aggregate level, such as annual electricity consumption for the whole company. The other one is
bottom–up method in which Individual process can be controlled separately and their energy usage
can be measured individually. Generally, the top–down approach can provide more reliable overall
emission estimates, but the calculation is usually on a company level. This method could not reflect
how the energy is consumed. while the bottom–up technique is...show more content...
Case selection cross docking which make an extension of the original model Data collection
Generally, four types of data will be used in this paper: Data provided by the warehouse Secondary
data from government department or green organizations Industrial data from previous research or
industrial standard Website
The warehouse provided limited data. A large range of the parameters are estimated from previous
research or industrial standard. Data likes the warehouse size, temperature of the storage, the flow of
the goods, average inventory level and electricity consumption is provided by the warehouse; Some
parameters in the model are difficult to measure, such as U values and emission factors are gathered
from government published document. The warehouse related energy parameters, for examples the
lighting energy parameters and MHE energy parameter are estimated from previous researchers. The
daily temperature for the city is from a weather history website weather database. Data analysis
The data analysis is consist of four parts. The first part will use the model to calculate emission by
HVAC, MHE and ligting respectively as well as calculate monthly total emissions. The separate
CO2 emissions are used to analyse how warehouse consumes energy; the total emission will be used
to compare with the result from the top–down method. The second part will validate the model with
the CO2 emission estimated by top–down methd. The third part will calculate the
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16. Electricity Access Essay
Electricity access is one of the major challenges facing most developing nations especially in
Africa. These challenges have been overcome mostly in urban areas because of existence of power
infrastructure, dense population and economic activities which require electricity. However,
electricity access is still low in many areas especially rural and remote areas with scattered
population with little or no economic activities. To electrify these areas the electric grid is always
the most feasible solution, but it is limited by high costs associated with grid extension [1].
With increasing demand for electricity coupled with environmental concerns and sustainability
issues, the manner in which electricity is generated and consumed is key to sustainable
development. Global environmental pollution, depleting oil reserves and increased cost of electricity
have necessitated the need for alternative forms of energy which are environmentally friendly and
sustainable.
Hybrid energy systems based on renewable energy will play a key role in meeting current and future
electricity demand. Electricity generated from geothermal, wind, solar, biomass, hydroelectric and
ocean resources is eco–friendly and increase the diversity of power generation. However, power
produced from renewable sources such as solar photovoltaic and wind energy systems is highly
variable due to their intermittent nature. To provide balance between energy generation and load
demand, energy storage systems are
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17. The Effect Of Electricity On Our Lives
If you were to assess the daily life of any average person, you would quickly realize just how
dependent a majority of the human race has become on electricity. A few of the everyday appliances
that require electricity would include cell phones, computers, air conditioning, lighting, and even
most modes of transportation. If we were to look at the uses of electricity a couple hundred years ago
and compare them to today's world, it would be obvious that electricity has played an important
role in innovation, progress, and communication and continues to become more and more
important as engineers and scientists find more and more ways to use it. Therefore, it would be
simple to assume that electricity will lead to much more innovation and technology as time goes
on, including playing a very important role in transportation as other resources may become
scarce. Gasoline, used as the fuel for methods of transportation like cars and airplanes, is
nonrenewable and being pumped from the ground at around 85 million gallons per year [1]. It is
now known that the oil supply globally cannot meet demand forever and thus many scientists have
begun preparing methods that reduce our reliance on the fossil fuels [1]. One already known use of
electricity in transportation would be the electric car, also often known as the Smart Car. Though
the sales have not been as high as many hoped, many carmakers have began to produce electric
vehicles, such as Ford, Volvo, BMW, and Tesla [2].
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18. Essay on Wireless Electricity
Wireless Electricity
Devry University
Tech, Society, and Culture
Professor
February 24, 2013
Table of Contents
I. Wireless Electricity: Explanation and History 3 II. Political and Legal Influences 10 III. Economic
Questions and Considerations 16 IV. Wireless Technology with Today's Culture 20 V. Ethical
Implications of Wireless Power 26 VI. Environmental Impact30 VII. Bibliography33
ABSTRACT: Wireless electricity is not a new idea, but it has recently become revitalized. This
paper looks at the different facets of this invigorated technology. First, it talks about what wireless
electricity is and the...show more content...
Where does one even begin to go to recharge or plug in their device? Picture being in the home of
your dreams, do you want the position and placements of electrical wall outlets to tell you where
your furniture or appliances are going to go? It is these simple yet important common
occurrences that one considers when trying to simplify their lifestyle. With a more widespread
use of wireless electricity, these common concerns are almost completely nullified. On a larger
scale, just imagine being able to drive electric cars without ever having the need to stop and plug it
in. Advancements in this sort of wireless power will eliminate having to ever consider where is the
nearest recharging station. As time goes on, this wireless electricity will only become more refined
and widely used and what once was a pipe dream–turned–small scale probability will soon become a
widespread reality.
Wireless electricity is a technology that will surely change the future the more it is implemented
into our daily lives. "Wireless charging is already available for low–power applications (up to 5
Watts), suitable for mobile phones and other devices. However, medium– and high–power
applications are also being developed, and in the future your kitchen appliances
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19. Essay on Electrical Hazards
Electrical Hazards Electrical Hazards, risks of injury or death arising from exposure to electricity.
Electricity is essential to daily life, providing heat and light and powering appliances in homes and
factories. It must, however, be treated with great care, because the consequences of an electrical
fault can be serious and sometimes fatal. Generally voltages greater than 50 volts can present a
serious hazard and currents of more than about 50 milliamps flowing through the human body can
lead to death by electrocution. A shock occurs when a "live" part of some device is touched, so that
current...show more content...
Most were males between 15 and 64 years of age, carrying out do–it–yourself and maintenance
work. Several deaths were caused by people touching the live end of a cable cut by an electric
lawnmower. Electrical faults in the home cause around 25,000 fires each year, killing or injuring
over 2,000 people. Electrical Installations Most countries have detailed regulations governing the
standards to which electrical installations must conform. In the United Kingdom the Wiring
Regulations (BS 7671), produced by the Institution of Electrical Engineers (IEE) and the British
Standards Institution (BSI), prescribe the wiring standards to be adopted. The Electrical Contractors
Association (ECA) and the National Inspection Council for Electrical Installation Contracting
(NICEIC) require their members to observe these requirements to minimize any danger. Electrical
Products In Britain, domestic electrical products must satisfy the requirements of the Electrical
Equipment (Safety) Regulations (1994), which were made under the Consumer Protection Act
(1987), and implement the Low Voltage Directive (73/23/EEC) of the European Union (EU). The
technical interpretation of the legal requirements is
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20. Static Electricity Essay
Static Electricity Everything is made up of tiny particles called atoms. The atoms are made up of
even smaller parts called protons, electrons and neutrons. Protons have a positive charge (+),
electrons have a negative charge (–) and neutrons have no charge at all, they are neutral. Atoms
normally have the same amount of electrons and protons, making them neutral and having no
charge. When rubbing things together, electrons can move from one atom to another, resulting in
some atoms having extra electrons and a negative charge. The other atoms now have more protons
than electrons and a positive charge. When the charges are separated, it is static electricity.
"Electricity is present in all matter in the form of electrons and...show more content...
All of those particles are then attracted to the negatively charged grid and then the air passes through
a carbon filter to remove any odors. Static electricity is also used with photography to work a
photocopier. An "electrostatically charged drum" attracts toner particles to the image in the original
document. The metal drum inside the machine is charged at the beginning of each copy. The system
inside the photocopier then puts an image of the document onto the drum. The electric charge goes
away wherever light shines on the drum and so only the dark parts of the image are still charged on
the metal surface. The particles of black toner are oppositely charged and then applied to the drum.
The charged parts, which contain the image, are attracted to the toner and transferred to the paper
and finally attached to the paper with heat.
Static electricity can cause materials to attract or repel each other. If you use a hair dryer on your
hair and then comb through it or just comb it on a very dry day, the plastic comb will collect
negative charges from the hair and leave the hair with an excess amount of positive charges. Since
like charges repel, the hair strands will push away from each other causing your hair to stand up or
"flyaway." Static electricity can also cause a spark to jump from one material to another, like when
you touch someone and "shock" them. As you walk across something like a carpet, electrons
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