Tuesday, October 22, 2019
New SAT vs Old SAT Changes You Must Know
New SAT vs Old SAT Changes You Must Know SAT / ACT Prep Online Guides and Tips In 2016, the SAT changed drastically from the old SAT. In terms of content, no other SAT changes in the past few decades have been this dramatic. If you're familiar with the old SAT, here's what you must know to do well on the current version of the SAT. In this article, I'll summarize the largest, must-know changes of the SAT. But for those of you who are serious about taking the test, it'll be well worth your time to read some of our more in-depth SAT guides. After all, a few minutes of reading through our expert guides is nothing compared to the sweet payoff of a high SAT score andan acceptance to the college of your dreams! How to Study for the New 2016 SAT- This guide starts with a detailed comparison of the current and old versions of the SAT, and then fleshes out a full SAT study plan. We also have individual section guides for SAT vocabularyand theSAT Reading Section. Finally, don't miss our in-depth new SAT vs old SAT comparison. New 2016 SAT: What's a Good Score?- Before you take the SAT, it's a smart idea to figure out what a good score is, both in general and for you specifically. This guide explains what a good SAT score is based on percentiles and your own college preferences. The Main Differences Between the New SAT and Old SAT The current version of the SAT is pretty different from the old version of the SAT. Below, I go over the major changes made to the overall SAT and to each section. General Changes to the SAT We'll start generally. This chart offers a broad overview of the biggest differences between the two versions of the SAT: Old SAT New SAT Administration 2005-January 2016 March 2016-present Score Range 600-2400 400-1600 Length of Test 3 hours 45 minutes 3 hours (w/out Essay)3 hours 50 minutes (w/ Essay) Total # of Questions/Tasks 171 154 (155 w/ Essay) Sections Critical Reading Writing + Essay Mathematics Evidence-Based Reading and Writing (EBRW) Math Essay (Optional) Guessing Penalty Minus 1/4 point per incorrect answer None 75th %ile Score (Good)* 1720 1190-1200 50th %ile Score (Average)* 1480 1050-1060 25th %ile Score (Poor)* 1260 910-920 *All percentiles for the new SAT come from the College Board's 2017 percentiles, and all percentiles for the old SAT come from the College Board's 2015 percentiles. As you can see, the current SAT is slightly longer than the old SAT if you opt to take the Essay, but significantly shorter if you don't take the Essay. It also combines your Reading and Writing section scores into a single Evidence-Based Reading and Writing (EBRW) score. Perhaps the biggest change most students know about is the score range: on the old SAT the max score was2400, but on the current SATthe max score is just1600. Finally, there is no longer a score penalty for incorrect answers on the SAT. Therefore,it's best to answer allSAT questions, even if you have to guess on some of them. Now that you've seen the overall changes, let's look at the differences on each section of the test. SAT Reading Changes The SAT Reading section has undergone some massive changes since early 2016. Here are some of the biggest differences to note: Old SAT Reading New SAT Reading Section Name Critical Reading Reading Scoring 200-800 (separate from Writing score) 10-40 test score, which is then combined with Writing to get Evidence-Based Reading and Writing (EBRW) score on a scale of 200-800 # of Sections 3 1 Order on Test Random 1st # of Questions 24, 24, 19 (in random order)Total: 67 52 Total Time 25 minutes, 25 minutes, 20 minutes (in random order)Total: 70 minutes 65 minutes Time per Question 63 seconds 75 seconds Content Tested High-level vocab in isolation, Sentence Completions, passage-based questions All passage-based questions, medium-level vocab in context, evidence support, data interpretation Subscores None Words in ContextCommand of EvidenceAnalysis in History/Social StudiesAnalysis in Science Overall, you now have fewer questions on SAT Reading and more time per question. The biggest change to be aware of, though, is that SAT Reading is now entirely passage-based. All questions, even vocabulary ones, are based on passages, so it's imperative to havea solid passage-reading strategyto use on test day. In terms of content, you'll still see vocab questions, but these are more focused on medium-level vocab words and your ability to figure out their meanings in context.In addition, you need to be able to identify specific areas in passages you found your answers in. SAT Writing Changes SAT Writing has undergone some noticeable changes since the test's redesign in early 2016. Here are the most important ones to note: Old SAT Writing New SAT Writing Section Name Writing Writing and Language Scoring 200-800(separate from Reading score) 10-40 test score, which is then combined with Reading to get Evidence-Based Reading and Writing (EBRW) score on a scale of 200-800 # of Sections 3 (one essay and two multiple-choice sections) 1 (essay = separate section) Order on Test Random 2nd # of Questions 35, 14 (in random order)Total: 49 44 Total Time 25 minutes, 10 minutes (in random order)Total: 35 minutes 35 minutes Time per Question 43 seconds 48 seconds Content Tested Improving Sentences, Identifying Sentence Errors, Improving Paragraphs, grammar rules in isolation All passage-based questions, grammar and punctuation, logic and expression of ideas Subscores None Expression of IdeasStandard English ConventionsWords in ContextCommand of EvidenceAnalysis in History/Social StudiesAnalysis in Science As the chart shows, the SAT Writing section is no longer scored on its own butin conjunction with SAT Reading(to give you a combined Evidence-Based Reading and Writing score). Additionally, the Essay is now a separate (optional) section and is not considered part of the Writing section. You also now have fewer Writing questions, giving you slightly more time per question. In regard to content changes, all questions are now based on passages (like the Reading section), and there is a bigger emphasis on sentence style, logic/flow, and punctuation. SAT Math Changes Though the SAT Math section has changed the least of all SAT sections, it still looks quite different now than it used to before the redesign. Here are the major differences between the current SAT Math section and the old SAT Math section: Old SAT Math New SAT Math Section Name Mathematics Math Scoring 200-800 200-800 # of Sections 3 2(No Calculator Test and Calculator Test) Order on Test Random 3rd =No Calculator Test4th = Calculator Test Calculator Permitted? Yes Yes, but only on Calculator Test (not on No Calculator Test) # of Questions 20, 18, 16 (in random order)Total: 5444 multiple choice, 10 grid-ins No Calculator Test: 20Calculator Test: 38Total: 5845 multiple choice, 13 grid-ins Total Time 25 minutes, 25 minutes, 20 minutes (in random order)Total: 70 minutes No Calculator Test: 25 minutesCalculator Test: 55 minutesTotal: 80 minutes Time per Question 75 or 83 seconds (depending on section) No Calculator Test: 75 secondsCalculator Test: 87 seconds Content Tested Arithmetic, numbers and operations, algebra, functions, geometry, some data analysis Arithmetic, algebra, functions, advanced algebra, data analysis, word problems; 10% = geometry, trigonometry, complex numbers Subscores None Heart of AlgebraPassport to Advanced MathProblem Solving and Data Analysis You now get more time on SAT Math and four more questions in total. The section is also divided into two subsections: a No Calculator test (on which you may not use a calculator) and a Calculator test (on which you may use a calculator). Content-wise, you're still being tested on many of the same fundamental topics, including algebra, functions, and arithmetic. However, there is now less emphasis on geometry and more emphasis on data analysis, graphs, and word problems. Moreover, the old SAT Math section did not test any trig whatsoever, whereas the current SAT has at least a few questions on trig. SAT Essay Changes Finally, we get to the SAT Essay section. Here are the biggest changes to know: Old SAT Essay New SAT Essay Section Name Essay Essay Optional? No Yes Scoring 2-12 (based on two scores by two readers, each on a scale of 1-6) One score for each dimension on a scale of 2-8 (based on two scores by two readers, each on a scale of 1-4) Dimensions None Reading,Analysis,Writing # of Sections 1 1 Order on Test 1st 5th (if taking SAT with Essay) # of Prompts 1 1 Total Time 25 minutes 50 minutes Essay Prompt Answer a theoretical prompt by citing your own evidence Analyze a passage and the author's argument by citing evidence from the passage As you likely already know, the Essay section is optional with the current SAT, while before it was a mandatory section (and part of Writing). Essay scoring has also changed dramatically: test takers now get three scores, each on a scale of 2-8 (so a perfect Essay score would be 8|8|8). Before you had to provide your own evidence and answer a theoretical prompt, but now you must read a short passage and analyze the author's argument using textual evidence. Note that you are not expected to insert your personal viewpoint into your essay. New SAT vs Old SAT: 1-Sentence Summary For those of you who are interested in a summary of big-picture changes, here it is: the current SAT is a lot more like the ACT in that it tests more skills considered relevant to college success and relies less on trying to trick you. What's Next? Got more questions about how the current and old SATs differ from one another?Then check out our detailed examination of all changes between the two. In addition,our guide to the new SAT formatgives you tips on how to prep for the current version of the test. Not sure what SAT score to aim for on test day?Get a step-by-step guide on how to find your goal score based on the schools you're applying to. Looking for a detailed SAT resource to help you study for the test?Our ultimate SAT study guide contains links to our very best SAT articles and guides. And the best part is it'sfree! Want to learn more about the SAT but tired of reading blog articles? Then you'll love our free, SAT prep livestreams. Designed and led by PrepScholar SAT experts, these live video events are a great resource for students and parents looking to learn more about the SAT and SAT prep. Click on the button below to register for one of our livestreams today!
Monday, October 21, 2019
The Importance of Ones Name Essay
The Importance of Ones Name Essay The Importance of Ones Name Essay Argumentative essay on The Importance of ones Name: When a child is born, the parents name him or her as per their wish. They could name him or her in accordance to their cultural practices, events, names of dead relatives, materials and tools used, animals among others. Names always play critical roles in peopleââ¬â¢s lives. Different names may to mean different things. Names may be similar but have different meanings while others may be different but have the same meanings. Virtually everything that is in existence has a name attached to it. Such names are always used when referring to these things to bring to memory the thing in question. Every name has some sense of power associated with it. Such powers may have influences on the life of any individual possessing those names. Therefore, naming of a newborn child or an adult depends on several factors such as cultural beliefs, practices, customs, and the environment. It is an indisputable fact that human beings have been responsible for naming everything, whether alive or dead, moving, static, plants, animals or microorganisms. For instance, : Sandra Cisneros, in her essay My name notes that a name can mean hope, many letters, sadness waiting (pg. 190) The naming in such cases has been as distinctly precise as none of the organisms named share the same names. In cases where they might share such names, there has always been a clear and precise way that conventionally applies in differentiating the two organisms. Under such situations, different methods are put into consideration. These methods of differentiation of names majorly depend upon the parental hierarchy of such organisms. Consequently, human beings also accord a lot of credit to the power of naming. However, the decision on which name to give to someone is not an easy task. People are named with regard to a number of factors. Some people may name their children after some renowned people. These people may be influential in the society or may have some adorable characteristics that the parents may want their children to adopt. Another factor that may define naming may be a remarkable or memorable occurrence. For instance: Lini S. Kadaba, in her essay, Whatââ¬Ës in a Name? Shows how Christopher Angelo Annas of South Philadelphia was named after his grandfather, Annas. The grandfather, initially named Papanastasiou but later changed the name to Annas on arrival to America. The grandchild later changed his name to Christopher Angelo Anastasiou, back to the original meaning. He claims that Annas, the name adopted by his grandfather sounded like part of anatomy (pg. 175). Under such situations, the namin g instills the spirit, ability, as well as the power of memory of such occurrences and one can change it later in life. Naming could also be done due to phenomena linked to some sort of victory. Under such conditions, it is immensely easy to memorize all the events that transpired in such an occurrence, thereby instilling the sense of identification with the occurrence even if it took place a long time ago. Under such conditions, a parent may decide to name his or her daughter following such victorious events in order that it remains indelible in the memory of the parent. A good example of a name that best suits such occurrences is Victor; for a boy, or Victoria; for a girl or a woman. Other people may absolutely refuse change their names, while others may opt to change their names if need arises. Some of these memories heavily rely upon the past, and may have strong basis on some issues that put someone in some essence of slavery. For example, most African Americans for a long time did not prefer American names thus opted for African or Muslim names due to the memories of slavery. Lini S. Kadaba in her essay reveals how Kunte Kinte, a young slave refused to change his name even after getting a thorough whipping since he thought doing so would enslave him even more and more. Later, he changed his name to Richard Kenyada basing his argument on cultural, ethnic, and even social heritage (pp. 176). In English, the name Lucky may mean a victory that someone achieves because of chance. On the other hand, the name Lucky may entails sad memories in cases where the person with such a name was the only survivor of a tragic accident. Under such situations, such a name when used brings in the sense of sad memories. The name Hope, on the other side, may also mean either a positive thing or a negative thing. This name may mean different contrasting things in relation to the language in use. For example, in Latin the name Hope may mean sadness, or waiting. The use of names may also play a significant role in associating us with our friends, families, as well as, societies as noted by Liny S. Kadiba in the essay (pp. 175). Names connects us with family and influence others perception of us and can change someoneââ¬â¢s life. A good proportion of names that we use bear the responsibility of shaping the perception of people towards us. In this sense, it is true that names are ideally the best identification marks for every individual in any social setup. Some parents may name their children after their grandparents or after some prominent persons in the society. This helps in identifying such children with the adorable qualities that such prominent persons possess, thus, it may happen that the child may be lucky to possess such qualities as he or she grows up. Naming could also be due to someoneââ¬â¢s heritage, culture, or spiritual linkage. Lini S. Kadaba continues to illustrate in her essay how Jane Komarov, changed her name to Jane Komarow as she claims that the sounding of the name connects her with a richer heritage. She does not care whether the name means a mosquito, as she believes she is not a mosquito in real sense (pp 175). Name could also mean spiritual events or personalities. For instance, Omi Yori in Yoruba is a spiritual leader as indicated by Lini S. Kadaba (pp176). Consequently, the American name Smith means someone who works with metal (pp177). However, even though names associates someone with the family or society, none of the parents may be in need of naming a child after someone who bears bad characters in the society, for instance, a renowned witch, thief, or a serial criminal. This is due to the fear of the power in naming. Thus, every name bears its own powers that can heavily affect the life of an individual, thus making such a person to change his life in correspondence to the power associated with such a name. Therefore, it implies that when someone takes another personââ¬â¢s name, it is somehow closer to taking away the latterââ¬â¢s soul. In such cases, people always avoid identifying themselves with such bad names as they can bear some bad omen to an individual. In conclusion, it is true that names play a major role in the lives of people in the society. Different names mean different things. The major role of naming is to accord some sort of identification to the thing in question. People accord different names to themselves or to their children with regard to a number of factors, such as cultures, occurrences, or naming after some prominent persons or dead relatives in the society. 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Sunday, October 20, 2019
The History of Scissors
The History of Scissors Leonardo daà Vinci has often been credited with inventing scissors, but they predate his lifetime by many centuries. Nowadays, itââ¬â¢s hard to find a household these days that doesnââ¬â¢t have at least one pair. Ancient Scissors The ancient Egyptians used a version of scissors as long ago as 1500 B.C. They were a single piece of metal, typically bronze, fashioned into two blades that were controlled by a metal strip. The strip kept the blades apart until they were squeezed. Each blade was a scissor. Collectively, the blades were scissors, or so rumor has it. Through trade and adventure, the device eventually spread beyond Egypt to other parts of the world. The Romans adapted the Egyptiansà design in 100 A.D., creating pivoted or cross-blade scissors that were more in line with what we have today. The Romans also used bronze, but they sometimes made their scissors from iron as well. Roman scissors had two blades that slid past each other. The pivot was situated between the tip and the handles to create a cutting effect between the two blades when they were applied to various properties.à Both Egyptian and Roman versions of scissors had to be sharpened regularly. Scissors Enter the 18th Century Although the actual inventor of scissors is hard to identify, Robert Hinchliffe, of Sheffield, England, should be rightfully acknowledged as the father of modern scissors. He was the first to use steel to manufacture and mass-produce them in 1761 more than 200 years after daà Vinciââ¬â¢s death. Pinking shearsà were first invented and patented in 1893 by Louise Austin of Whatcom of Washington to facilitate pinking and scalloping and as a marked improvement over ordinary pinking irons and tools.â⬠Here are some mentions of scissors in print publications over the years, as well as a bit of folklore. From Emar, Capital of Astata, in the 14thà Century BCE By Jean-Claude Margueron Besides ceramics, occasionally collected in large quantities, the houses produced stone and metallic objects illustrating both day-to-day needs and the activities of city merchants: beer filters,à containers, arrow and javelin heads, scales of armor, needles andà scissors,à long nails,à bronze scrapers, millstones, mortars, many kinds of grindstones, pestles, various tools and stone rings. Fromà The Story of Scissorsà by J. Wiss Sons, 1948 Egyptian bronze shears of the Third Century B.C., a unique object of art.à Showing Greek influence although with decoration characteristic of Nile culture, the shears are illustrative of the high degree of craftsmanship which developed in the period following Alexanders conquest of Egypt.à Decorative male and female figures, which complement each other on each blade, are formed by solid pieces of metal of a different color inlaid in the bronze shears.Sir Flinders Petrie ascribes the development of cross-bladed shears to the First Century. In the Fifth Century, the scribe Isidore of Sevilleà describes cross-bladed shears or scissors with a center pivot as tools of the barber and tailor. Folklore and Superstition More than one expectant mother has placed a pair of scissors beneath her pillow at night somewhere toward the end of her ninth month of pregnancy. Superstition says that this will ââ¬Å"cut the cordâ⬠with her baby and prompt labor. And heres another tall tale: Donââ¬â¢t hand those scissors to your best friend. Place them on any available surface and let your friend pick them up. Otherwise, you risk severing your relationship. Some say that those scissors languishing in your catch-it-all drawer can help keep evil spirits out of your home. Hang them by one handle near your door so they form a version of a cross.
Saturday, October 19, 2019
What Human Resource Management Is And To What Extent Do Hard And Essay
What Human Resource Management Is And To What Extent Do Hard And Soft HRM Practices Differ - Essay Example The researcher states that in the recent past adoption of HRM practices has been on the rise thus challenging the personnel management existing order in many organizations. A lot of questions have remained unexplained on why HRM has been dominant over the other practices of employment. Attempts to sufficiently define the role of HRM have been unsuccessful. Many scholars had to speculate if there has been anything new formed regarding the precise definition of HRM. Some view human resource management to be in direct rebellion and rejection with personnel management and industrial relations. Others on the other hand view HRM to be a repackaged form of Personnel Management. Interestingly, there has been a considerable degree of extension and overlap between the roles, models, and theories that constitute the disciplines of Personnel Management and HRM. The overlap is in support of the fact and argument that HRM is Personnel Management that has been repackaged, and there is no big change between the two. On the contrast, the HRM outcomes have not been in agreement with that of traditional Personnel management. For example, cultural controls, strategic orientations, and normative concepts are absent in HRM. Many argue that the distinction between HRM and Personnel Management is on the different ways in which the theories and models they share are being deployed. A definite example that districts between the two disciplines are discourse and dialogue HRM treats labor unions. To the labor process theory, HRM has become a universal term describing the different employment governance approach. To define the employment management procedures, it is necessary to distinguish between HRM as a discipline and HRM as a dialogue. To reveal the actual role of HRM it is vital to carry out a definition of based in the context it operates in. In my view, HRM is a regulation mode that nurtures an accumulation capitalist regime. It is because the HRM practices were first being formula ted implemented by the Western nations whose economies are capitalists in nature.
Analysis of Marketing Mix Research Paper Example | Topics and Well Written Essays - 2250 words - 1
Analysis of Marketing Mix - Research Paper Example The marketing strategy of a business organization is seen to be embedded in its marketing mix decisions. The marketing mix is a set of marketing tools that the firm uses to pursue its objectives in the target market. McCarthy classified these four broad groups that he called the four Ps of marketing: product, price, promotion, and place (Kotler 2003). Qantas (an acronym for Queensland and Northern Territory Aerial Services) is the world's second oldest continuously running independent and Australia's largest airline. The firm traces its roots in November 1920 when it operated air mail services subsidized by the Australian government. Through the years, the airline has significantly developed and evolved into an international carrier. With its fleet of 200 aircraft, Qantas flies to more than 80 destinations in about 40 countries and to some 20 cities in Australia (Qantas 2006). During the fiscal year ended June 2005, the company reported $9,632.1 million in total revenue representing double-digit annual growth of 23.0%. Out of this huge revenue, profits realized $579.5 net profit. The airline currently employs 38,000 employees to man its various business operations. It should be noted that the number of employees has increased by 12.2% from the previous year. This significantly indicates Qantas' aggressive expansion (Hoover 2006). Currently, Qantas continues to be one of the market leaders in the global air transportation industry. Its main international hubs are Sydney Kingsford-Smith airport and Melbourne International Airport, followed by Singapore Changi Airport. However, Qantas operates a significant amount of international flights into and out of Los Angeles International Airport, London Heathrow, Brisbane International Airport, Tokyo Narita Airport, and Perth International Airport. Its domestic hubs are Sydney, Melbourne, and Brisbane airports, but the company also has a strong presence in Perth, Adelaide, Cairns and Canberra Airports (Qantas 2006). This impressive performance of Qantas, which makes it the world's leading long distance airline and one of Australia's strongest brands, can be directly attributed to its well-laid marketing strategy. Included in these are the crucial decisions on product, price, promotion, and place. Qantas, as an airline, is primarily involved in offering passenger transportation and air freight to its market. However, we can see that the product portfolio of Qantas also includes other associated business operations like in-flight catering, and holiday and travel operations (Qantas website 2006).
Friday, October 18, 2019
Investor Protection Essay Example | Topics and Well Written Essays - 750 words
Investor Protection - Essay Example When there is strong investor protection, there is low insider expropriation, which in turn leads to lower profits appropriation, lower tunnelling of assets as well as reduced dilutions (DeFond & Hung, 2007); in return, minority and external shareholders enjoy lower agency costs, thereby reinforcing investorââ¬â¢s confidence. Better investor confidence eventually culminates in many benefits including higher profitability, lower costs of debt and equity, higher access to capital, higher valuation and liquidity. Moreover, better investor confidence leads to increased savings, productive investment of savings, and enhanced capital accumulation. Investor protection can be achieved through the legal approach to corporate governance, which provides laws and regulations for the protection of external investors (Spindler, 2011). Investors often feel safer to invest in countries where their rights are protected under the law, because they understand their vulnerability to expropriation. Unlike employees or suppliers who are less likely to be mistreated by firms due to their continued usefulness to the firmsââ¬â¢ operations and sustainability, external investors must rely on the law for protection in an unfamiliar environment. Legal protection of external investors undermines expropriation technologies and mechanisms, while in an environment with no legal protection the so-called insiders (managers and controlling stockholders) can easily steal a companyââ¬â¢s profits (La Porta et al., 2000). In that respect, investor protection renders the diversion techniques ineffective so that the insiders expropriate less, thereby crea ting a positive reputation for their organizations and obtaining external financing on better terms than when expropriation is high. The legal framework provides laws and regulations that mandate certain rights or powers belonging to
Alternating Current and Direct Current Essay Example | Topics and Well Written Essays - 2000 words
Alternating Current and Direct Current - Essay Example The paper shed light upon several advantages and disadvantages of both DC and AC, how AC is converted into DC has also been discussed in this paper. It is important to note that DC is easier to analyze and has a plethora of other advantages but DCââ¬â¢s inability to convert different voltages is a big con because of which AC is used more widely then DC. However, the modern day electricity devices require DC so they come with automatic converters that instantly convert AC into DC. For transferring current over a long-distance DC is used because it is cost-effective but otherwise AC is used, another difference is that people in North America use AC and people in European counties use DC. These were some of the advantages, disadvantages and the most important differences between alternative current and direct current. Alternative current won over direct current in the 20th century when it was chosen over DC because people considered it more reliable, it had very few risks and this is why it was chosen as the standard current in North America, DC on the other hand had several major issues which were later sorted out and fixed. After fixing the major issues with DC several European countries chose it as their standard current, these days DC is being used in some of the elite European countries. It is necessary to have a circuit in order to distribute electricity. A circuit is usually made up of two wires which lead up to a device which uses electricity. In the case of alternating current, one of the two wires is positive and the other is either neutral which is also known as ground or negative, the two wires take their turns which enables sending electricity. In direct current the process works a little differently, the polarity in DC is always the same unlike in the case of AC where in polarity differs, in a DC circuit one wire is negative which means the other is sending electricity and is positive, the negative wire does not send electricity in a DC circuit. T here is no cyclic change and hence no hum in a DC, it is a fact that DC scores over AC in long-distances. In high-voltage transmission also DC is preferred because in AC a lot of electricity is lost, in DC less wastage takes place and this is why it scores over AC. AC scores over DC when it comes to converting DC into AC, it takes a lot of money to do that and it is not advisable to do so. DC should ideally be used only for long-distance transmission and AC in all other circumstances. Heating elements and light bulbs hardly care if the electricity supplied to them is DC or AC but it is very important to note that most modern day electrical gadgets require DC to work effectively. These days a transformer is used which consistently converts AC into DC for the devices to work effectively. In countries like Canada and the United States AC outlets have a voltage of 115 V and this is at 60 Hz. In European countries this is much different; most countries use 220 to 240 V which is about 50 Hz. It is also important to understand how peak voltage works, 115 V AC power usually has a peak voltage which is in the region of 163 V. Home and office electrical outlets are delivered electricity when the terminal has one hot and one neutral terminal. AC voltage is preferred by several people because a transformer is used to convert it into DC and it is very easy and a reliable source of getting direct current. A transformer consists of two inductors, the loops and turns present in these inductors are very different from each other. The number of turns usually determines the ratio of primary to secondary voltage. Electric generators have been made to produce alternating current, they can also produce DC but this can only be done by using a rectifier. A rectifier is made up of diodes which are also the most important part of a rectifier; the main use of a diode is that it allows the current to flow only in a single direction. DC power can also be converted into AC power; this can be done by using an inverter. Heating and arcing are two problems which are involved in producing AC and DC, alternating current can be generated at a much higher voltage than DC and the best part is that there will be fewer problems like heating and arcing. It is
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