Monday, January 20, 2020
Margots Intentional Killing in Hemingways The Short Happy Life of Fra
Ernest Hemingway is known for writing novels and short stories with unresolved endings. In his short story, ?The Short Happy Life of Francis Macomber?, he definitely leaves his readers guessing. The question is whether Margot kills her husband, Francis, intentionally, or if she accidentally shoots him, because she tries to save his life. There are many points that could be argued for both conclusions, but my observations have led me to believe that Margot did indeed shoot her husband intentionally, however, without pre-meditation. Margot has one of the most obvious motivations to kill her husband: money. In addition, she, on the other hand, has one great asset, her beauty, ?They had a sound basis of union. Margot was too beautiful for Macomber to divorce her and Macomber had too much money for Margot ever to leave him? (Hemingway). As this sentence says, their relationship is one of selfishness on both their parts. Francis desires beauty while Margot desires wealth. Money has long been considered the root of evil especially for those who do anything to keep it. The marriage bet...
Sunday, January 12, 2020
Nickel and Dimed Essay
Blue collar jobs are decent means to earn a living.à However, upon reading Nickel and Dimed, a sad reality on the plight of the working poor or the low-wage workforce would wrenched anyoneââ¬â¢s heart thinking that if this one is happening in America what will happen to the rest of the other world for instance the poorer countries or we may say the fourth world? The world look up at Americaââ¬â¢s prosperity but in reading the book of Ehrenreich somebody with a heart would say leave behind that job that enslave and find a living!à This can be easier said but in the true sense it is not the case.à The world we are in is a competition and harsh to people who have the misfortune of having the least opportunity. For this reason, a gesture of kindness or a smile for the working class would alleviate their misery and this is the least we can do or offer them.à Moreover, it is a thing every man should ponder, and to find ways and means to eradicate such meanness. Essay for question number 2 Affordable housing is always in locations called the inner city.à No low-wage worker can afford a prime location and these locations are normally the place where somebody could easily find a job.à Moreover, city planners and businesses cater to the public who have the highest purchasing power because that means business.à With these realities, one may say that the problem is difficult to solve. Habitat for Humanity offers affordable housing but to marginalize few, this international housing organization despite its efforts can not extend its arms to every body that will be in need for low-cost housing.à Many of the working class has a need for affordable housing but it is a bone wrecking effort to make both ends meet.à Probably the only remedy is to lower the living condition and live within the most viable limit.à Truly the best way for a poor person is to live a frugal and detached life and that is to live in a trailer house? Essay for question number 3 Color or hues, even if we say we live in a free country still matters not because it is the Americas but on the simple truth that man are judgmental, discriminating or simply out of touch to reality, greedy or just bent on maximizing their profits. The life of working person begins not in front of his or her job but in the home when she or he start pulling the laundry, wash the dishes or fetch a son or daughter in school.à These are domestic works which needs to be polished day in and out.à In fact, this daily duties is enough challenge to a single parent when he or she needs to battle his or her time from the job that is at hand.à Moreover, single parents do not receive much emotional backups and for this reasons are occasionally being construed by a society to be in need of help but are often are the ones most of the times victimized. Essay for question number 4 Low-wage workers are often times people because of poverty have low self-esteem and for some are rebels.à These workers find difficulty in asserting themselves.à Just imagine the torture of everyday, fighting for the lease of a life that seemed to becoming expensive everyday?à Mentally these are poor workers who have already despaired on their sad fate that since there is no choice left to live, these are just the guys who would shrug their shoulder and live until one can still swallow an air to breath. People who are bereft of a just wage are men marginalized in a materialistic society that lords over technology.à A hedonistic society that looks down on men who belongs to the working class and despised them as if they are not flesh and bones like the rest of the human race.à Every citizen has the right to a just wage, a safe working condition, and a job that could sustain not just the pocket but the heart and mind as well. However, some rights are often undermine by the lack of concern not only from the policy makers but also from the public itself when people patronized products that are cheap because it provides cheap labor to its workers.à Employees of ill-minded owners or greedy businesses should make a stand not to patronized products and services that belong to these suckers.à There is a call for genuine solidarity among employees so that demands will be laid in the most effective and orderly manner or strategy.à With Barbara,à one would say that a 6$ job is not enough ââ¬Å"to compensate indignityâ⬠(Ehrenreich, 2000). References Ehrenreich, B. (2000). Nickel and Dimed: On (Not) Getting By in America [Electronic Version]. Retrieved 29 February 2008, from http://www.henryholt.com/readingguides/ehrenreich.htm à à Ã
Friday, January 3, 2020
Blindness In Oedipus The King Essay - 725 Words
Blindness plays a two-fold part in Sophoclesamp;#8217; tragedy amp;#8220;Oedipus the King.; First, Sophocles presents blindness as a physical disability affecting the auger Teiresias, and later Oedipus; but later, blindness comes to mean an inability to see the evil in oneamp;#8217;s actions and the consequences that ensue. The irony in this lies in the fact that Oedipus, while gifted with sight, is blind to himself, in contrast to Teiresias, blind physically, but able to see the evil to which Oedipus has fallen prey to. Tragically, as Oedipus gains the internal gift of sight, he discards his outward gift of sight. Sight, therefore, seems to be like good and evil, a person may only choose one. nbsp;nbsp;nbsp;nbsp;nbsp;Teiresias,â⬠¦show more contentâ⬠¦Yet what distinguishes Teiresias from the others was his genuine concern for others amp;#8211; a concern that he voiced before demolishing Oedipus in front of the growing crowd outside of the palace. For Teiresias, the choice was simple amp;#8211; he chose to forego his disability and delve deeper into himself in order to find a sight that surpassed his physical limitations, a sight destined for good. nbsp;nbsp;nbsp;nbsp;nbsp;Oedipus, on the other hand, was not given such an easy decision. While gifted with an outward sense of sight, he lacked the knowledge of his own sinful actions - his hamartia, so to speak. Oedipus was seeing to others, but blind to himself. As he fled from Corinth, fearing a prophecy he received from an oracle, Oedipus showed complete blindness to the inevitability of his fate. The murder of his father, Laius, and the subsequent marriage to this mother, Jocasta, further elucidate the extent of Oedipusamp;#8217; blindness; blind in deed, reason, and consequence. Tragically, Oedipusamp;#8217; anagnorisis occurs simultaneously with his motheramp;#8217;s/wifeamp;#8217;s suicide. With a heart full of despair and a pair of newly opened eyes, Oedipus makes his transformation complete as he exchanges his limited physical eyesight for the spiritual sight possessed by Teiresias. With this being done, Oedipus also seals his fate amp;#8211; he no longer can serve evil,Sh ow MoreRelatedTheme Of Blindness In Oedipus The King781 Words à |à 4 Pagesa Greek Drama Oedipus the King in which he incorporates how we, as humans, process pain and different ways of doing so. Oedipus the King is about Oedipus fulfilling a prophecy the Sphinx predicted. Throughout the story, Oedipusââ¬â¢ revelation to the Sphinxââ¬â¢s prophecy becomes so horrific to him that he, himself, ends up blind. Blindness is the focus of Oedipus the King in that Oedipus is blind to the truth about the prophecy and is reluctant to believe it. The three types of blindness that occur throughoutRead MoreSight And Blindness In Oedipus The King789 Words à |à 4 PagesCaleb Cho Ms. Kim English 373H 5-October- 2017 Tension Between ââ¬Å"Sightâ⬠and ââ¬Å"Blindnessâ⬠Essay - Rough Draft Deep in the forest lived a blind man named Carl. Once a week Carl would travel to the nearest city to buy supplies and food. One day, a young boy decided to play a trick on Carl, the boy would catch a bug, and then ask if the bug was alive or dead. If Carl said ââ¬Å"aliveâ⬠the boy would crush the bug and show Carl the bug was dead. If Carl answered ââ¬Å"deadâ⬠the boy would let the bug fly away, aliveRead MoreSight and Blindness in Oedipus the King Essay1048 Words à |à 5 PagesThe Irony of Sight and Knowledge in Oedipus the King People equate ââ¬Ëseeingââ¬â¢ to gaining knowledge. Expressions such as ââ¬Å"I seeâ⬠and ââ¬Å"seeing truthâ⬠are used to express understanding of something, but is seeing really the same as knowing? In Oedipus the King, Oedipusââ¬â¢s inability to grasp the truth is despite the fact that he is physically able to see contrasts Teiresiasââ¬â¢s knowledge of the truth even though he is blind. The irony of the blind man being knowledgeable, and the seer becomingRead MoreThe Portrayal of Blindness in The Outsider and Oedipus the King1052 Words à |à 5 PagesThe Portrayal of Blindness in The Outsider and Oedipus the King A primitive motif in Oedipus the King by Sophocles and The Outsider by Albert Camus is blindness. The protagonists in the novels are blinded to a personal truth, and are physically blinded as well. In The Outsider, Meursaultââ¬â¢s blindness is metaphorical, as he is negligent to his own absurdity, which he later becomes categorized as. On the other hand, Oedipusââ¬â¢s blindness is literal, as he is ignorant to the truth of his life;Read MoreUse of Blindness in Oedipus the King Essay920 Words à |à 4 Pagesin his plays, Wisdom stands out as the most impact full. After all, No law or ordinance is mightier than understanding(Plato 1/2). In the play Oedipus the King, Sophocles uses the blindness of Teriesias, Jocasta, and Oedipus to point out how understanding is far greater than vision alone. In the play Oedipus the King, Sophocles use the blindness of Teiresias to point out the great power behind wisdom and understand. Teiresias, by your art you read signs and secrets of the earth and the sky;Read MoreEssay on Theme of Blindness in Sophocles Oedipus the King758 Words à |à 4 PagesTheme of Blindness in Sophocles Oedipus the King Sophocles?s play, ?Oedipus the King? is one of the most well known of the Greek tragedies. The play?s interesting plot, along with the incredible way it is written are only two of the many reasons why two thousand years later, it is still being read and viewed. For those who are not familiar with the story of ?Oedipus the King?, it is written about the results of a curse put on King Oedipus which claims that he will murder his father and marryRead MoreEssay on Blindness and Sight - Lack of Vision in Oedipus The King910 Words à |à 4 PagesBlindness in Oedipus The King (Rex) What is sight? Is it just the ability to recognize oneââ¬â¢s surroundings or is there more? Is it knowledge? Is it understanding? Can a blind man see? Can the sighted be blind? And beyond, when the truth is too terrible, do we choose not to see? The phrase too see has so very many connotations. One meaning is to know or to understand and the other is based on the physical aspects of things. As humans, we are distracted by the physical world, which causes usRead More Blindness and Sight - Sight Versus Insight in Oedipus the King (Oedipus Rex)1357 Words à |à 6 PagesSight Versus Insight in Oedipus the King à à à à Anyone who has common sense will remember that the bewilderments of the eye are of two kinds, and arise from two causes, either from coming out of the light or from going into the light,which is true of the minds eye, quite as much as the bodily eye; and he who remembers this when he sees anyone whose vision is perplexed and weak, will not be too ready to laugh; he will ask whether that soul of man has come out of the brighter life, and is unableRead More Blindness, Sight and Eyes in Sophocles Oedipus The King Essay682 Words à |à 3 PagesThe Deeper Meaning of Sight and Eyes in Sophocles Oedipus The King In Sophocles play, Oedipus The King, the continuous references to eyes and sight possess a much deeper meaning than the literal message. These allusions are united with several basic underlying themes. The story contains common Ancient Greek philosophies, including those of Plato and Parmenides, which are often discussed and explained during such references. A third notion is the punishment of those who violate the law ofRead More Oedipus the King by Sopohocles Essay1567 Words à |à 7 PagesOedipus the King by Sopohocles Works Cited Not Included Throughout the play, Oedipus the King, Sophocles refers to site and blindness to relate attitudes and knowledge of the past. The irony of sight in this play can be marked by Oedipusââ¬â¢ inability to realize that which is evident to the reader. His extreme pride is his tragic flaw. It blinds him from the truth. Oedipus blinding himself symbolizes his increase of knowledge, his sensitivity, and gives him the ability to finally see. He
Thursday, December 26, 2019
Smith vs. Marx - a Comparison Essay - 1247 Words
Smith versus Marx Ãâ" A Comparison S. Glen Balanoff July 04, 2004 Smith versus Marx Ãâ" A Comparison Modern economic society can be described as a combination of certain points from several theories combined into one. Changing dynamics and economic needs of nations has spawned a development of various, and contrasting, economic systems throughout the world. Perhaps the two most contrasting philosophies seen in existence today are that of capitalism and communism. The two philosophers most notably recognized for their views on these economic systems are Adam Smith and Karl Marx. This paper will identify several fundamental aspects of economic philosophy as described by Smith and Marx, and will compare and contrast the views of theseâ⬠¦show more contentâ⬠¦Smith believed that self, self-interest, and self-determination, all were mechanisms where individuals are motivated to gain wealth and power for individual gain and group gain. Smith believed that Ãâself is a matrix of reason and passion (Levine, 1998). Furthermore, Smith believed that sympathy leads to empathy, and our individual self-determination leads to accumulation of wealth that benefits others as well as us (Levine, 1998). Examples of this concept are evident in our current economic society today. We see Bill Gates and Microsoft providing technology to communicate more efficiently, Henry Fords posterity changing the transportation market, and many others who impact man with their accumulation of wealth. The simplistic perception of capitalist society varies greatly among Smith and Marx. Smith believed that capitalism is a mechanism designed to curb mans selfishness and put it to work for the general good of all (Baumol, 1976). Conversely, Marx believed that capitalism is based on neither good nor evil, but a product of historical circumstances or experience (Baumol, 1976). Marx also believed that the law of motion in capitalism frustrates, rather than facilitates, the individual ends (wealth). Marx believed that wealth divides capitalists by class, and that workers must develop in a universal class (Levine, 1998). Marx also disagreed with Smith in believing that production must cease to be a labor process if itShow MoreRelatedHobbes Vs. Marx On Government s First Duty1038 Words à |à 5 PagesDecember 2014 Topic #1 ââ¬â Hobbes vs. Locke vs. Marx ââ¬Å"Governmentââ¬â¢s first duty is to protect the people, not run their lives,â⬠said Ronald Reagan. Some political philosophies like John Locke would agree to this statement, while other, like Thomas Hobbes would not, and some will both agree and disagree, like Karl Marx. You will come to learn why the ââ¬Å"social contractâ⬠of John Locke is the best through the review of all three philosophers main ideas on government, the comparison of all three philosophers,Read MoreEconomic Systems: Socialism and Capitalism Essay1018 Words à |à 5 PagesI have observed that when Americans discuss the relative merits of socialism vs. capitalism, the chief debates that come up are â⬠¢ What would happen if we remove the stimulus for innovation and productivity that a free market generates? This implies having a free market including individual ownership and control, and to varying degrees a laissez-faire government. â⬠¢ Would it be possible to have a thriving society in which we would not have 20% of the population living in poverty and without adequateRead MoreCuba s Modernization During The 20th Century1697 Words à |à 7 Pagesthings that are used to make and transport products (such as land, oil, factories, ships, etc.) and there is no privately owned property.â⬠- Merriam Webster dictionary. The idea of communism originates from Marxism, founded by Karl Marx, a German philosopher. Marx believed that wealth should be evenly distributed among the people. During the Industrial Revolution he saw factory workers working long hours in harsh conditions struggling to get by, while capitalist weââ¬â¢re getting rolling in theRead MoreThe Recession And The Credit Crunch Of 20081927 Words à |à 8 Pagesplace economic liberalization measures. It has an unemployment rate of 8.8% and a deficit of -5.7% of the GDP. In 2013 the total exports for India was at $313.2 billion whereas the import stood at $467.5 billion (CIA, 2014). India followed the Adam Smith model producing only what it was efficient at and imported the rest. There started a reversal in capital inflows which hit the export demand and posted a crunch in the domestic markets leading to a decline of more than 2% in Indiaââ¬â¢s GDP in the fiscalRead MoreHofstedeââ¬â¢s Limitations14637 Words à |à 59 Pagescultural indices along the dimensions of Hofstedeââ¬Å¸s model of culture. The improvements are made in two ways. First, the study is based on a larger and more representative sample than that used in Hofstedeââ¬Å¸s or any other large-scale cross-cultural comparison study. The meta-analytic sample was gathered from 532 empirical papers and contains data on over 2,000 samples comprising almost half a million individuals from 48 countries and regions. Second, we take into account and address the changes in nationalRead MoreThe Impact of Employee Satisfaction on Quality and Profitability in High-Contact Service Industries10865 Words à |à 44 Pageswould induce any systematic bias to the study. Our research team distributed the questionnaires in person to each of the three respondents. The respondents were allowed to complete the questionnaire at different time and different places (e.g., work vs. home) at their convenience. This helped mitigate the problem of transient mood state and common stimulus cues ââ¬â a source of common method bias (Podsakoff and Organ 1986). Our research team then collected the questionnaire from each respondent individuallyRead MoreMerger and Acquisition: Current Issues115629 Words à |à 463 Pages24 3 Misadventure and the Form of Payment in Corporate Acquisitions Tyrone M. Carlin, Guy Ford and Nigel Finch 3.1 Introduction 3.2 Factors influencing the form of consideration in acquisitions 3.3 A price too far? The acquisition of Howard Smith Ltd by Wesfarmers Ltd 3.4 Financial analysis 27 27 31 33 35 vii viii CONTENTS 3.5 3.6 Assessment of the transaction Conclusion 38 40 4 An Essay on the History of a Merger: The Case of the National Bank of Canada RaymondRead MoreContemporary Issues in Management Accounting211377 Words à |à 846 Pages9. Modernizing government: the calculating self, hybridization, and performance measurement Liisa Kurunmaki and Peter Miller à ¨ 10. Analytics of costing system design Eva Labro 11. Understanding management control systems and strategy Kim Langfield-Smith v vii xi 1 20 42 69 92 117 146 166 198 217 243 x CONTENTS 12. Management accounting, operations, and network relations: debating the lateral dimension Jan Mouritsen and Allan Hansen 13. Trends in budgetary control and responsibilityRead MoreDeveloping Management Skills404131 Words à |à 1617 PagesSUPPLEMENTARY MATERIAL 24 Diagnostic Survey and Exercises 24 Personal Assessment of Management Skills (PAMS) 24 What Does It Take to Be an Effective Manager? 28 SSS Software In-Basket Exercise 30 SCORING KEY AND COMPARISON DATA 42 Personal Assessment of Management Skills 42 Scoring Key 42 Comparison Data 42 What Does It Take to Be an Effective Manager? 43 SSS Software In-Basket Exercise 43 PART I 1 PERSONAL SKILLS 44 45 DEVELOPING SELF-AWARENESS SKILL ASSESSMENT 46 Diagnostic Surveys forRead MoreSmoking Cessation Of Pregnancy : Review Of Current Strategies9414 Words à |à 38 Pagespopulation-based study.Biomed Res Int.2015 May; 2015:345430. Higgins ST, Heil SH, Badger GJ, Skelly JM, Solomon LJ, Bernstein IM. Educational disadvantage and cigarette smoking during pregnancy. Drug Alcohol Depend, 2009 Oct;1:104. Chen LS, Baker TB, Piper ME, Smith SS, Gu S, Grucza RA et al. Interplay of genetic risk (CHRNA5) and environmental risk (partner smoking) on cigarette smoking reduction. Drug Alcohol Depend. 2014 Oct;1; 143:36-43. Flemming K, Graham H, McCaughan D, Angus K, Bauld L.The barriers and
Wednesday, December 18, 2019
Improving Law Enforcements Approach to Combating...
Introduction Organized crime involves a group of people made up of several ethnicities and international unions, who coordinate as well as work in unison, apart, or in line with legal enterprises alongside political realms. Many analysts have concurred that organized crime is both an impediment to academic projects and a realistic social issue that obligates urgent solution. Strategies implemented to limit organized crime often tend to be inclined towards one form of the two approaches. One of the approaches is tailored on dealing with individual members of the criminal gangs, whereas the second stresses on the structural aspects along with market networks that assist in accomplishing organized crime. It is essential to highlight thatâ⬠¦show more contentâ⬠¦Most criminal syndicates in the US seem to be freely ordered outfits, small, divided, and readily reactive to illegitimate commercial opportunities. Crime syndicates are normally not the fraudsters of civil servants along w ith certified experts as coequal associates completing a symbiotic rapport as noted by the Finklea (2010). The basic ideology of the alien conspiracy theory is headhunting, which regards curbing organized crime by detaining syndicate commanders alongside members, besides freezing their properties. The approach has resulted in countless arrests and sentencing among other types of castigation against crime suspects, although it has provided no hope in curbing the rate of syndicate crimes. Nevertheless, a highly promising and effective alternative to policing involves enhancing awareness on syndicate crimes by emphasizing the main aspects of illegal entities, with exceptional focus on undermining the influence and affluence of illegal investors. This merging objective might be realized by vigilantly monitoring the leading upperworld entities that, when infiltrated, permits criminals to gain and apply ample affluence by espousing legal alternatives in disguise of proceeds and the illici t power (JRank, 2013). Crime Control Theories According to Buscaglia Dijk (2003), crime control theories are generally fundamental for intellects, professionals, security forces,
Tuesday, December 10, 2019
The Major Internal and External Conflict of Harry Potter free essay sample
Itââ¬â¢s about the classic struggle between good and evil. Harry Potter was challenged with internal and external conflicts. Because of Harry Potterââ¬â¢s bravery and humility, he overcame these conflicts. One of Harryââ¬â¢s major internal conflicts in the story is that because of his miserable childhood, he desperately longs for connection with his mother and father. Harryââ¬â¢s aunt and uncle had lied to him and told him his parents died in a car accident. It was very upsetting to Harry when he found out they were actually murdered by his future nemesis. There is a mirror called the Mirror of Erised which plays an important role in this internal conflict. The mirror shows what you desperately desire most. While at the Hogwarts School of Witchcraft and Wizardry, Harry managed to sneak a gaze in the mirror. We will write a custom essay sample on The Major Internal and External Conflict of Harry Potter or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page He saw his parents and other family members standing around him in the mirror. Harry realizes that because he has never known his parents, his heartââ¬â¢s deepest desire is to have a connection with his family. Harryââ¬â¢s greatest external conflict was risking his life to fight Voldemort, his evil nemesis, and keep him from acquiring the Sorcererââ¬â¢s stone.Voldemort, who is in a spirit form, needs the stone to allow him a physical body. At one point, Voldemort tries to convince Harry to join him but refused to. During the fight, Harry faints before he has a chance to destroy Voldemort. When Harry awakes in the school hospital he realizes that, even though Voldemort escaped, he kept him from acquiring the Sorcererââ¬â¢s stone. Harryââ¬â¢s courage, perseverance, and understanding of himself allowed him to overcome his conflicts.
Monday, December 2, 2019
Rc lab report Essay Example
Rc lab report Paper Then the current ceases and the capacitor is fully charged. C Fig. 1 . A capacitor in series with a resistor. The left figure represents the circuit before the switch is closed, and the right after the switch is closed at t=O. The question arises on how does the current in the circuit vary with time while the capacitor is being charged. To answer this, we will apply Kerchiefs second rule, the loop rule, after the switch is closed EIR where q/C is the potential difference between the capacitor plates. We can rearrange this equation as The above equation contains two variables, q and i, which both change as a unction of time t. To solve this equation we will substitute for i dot q q This is the differential equation that describes the variation with time of the charge q on the capacitor shown in Fig. 1. This dependence can be found as follows. We will rearrange the equation to have all terms involving q on the left side and those with t on the right side. Then we will integrate both sides (q -CE)ARC q It q CE In ( ARC -CE (7) where e is the base of the natural logarithm. To find the current i(t) we will substitute for q in CEQ. 3 formula 8. The derivation of q is E-t/ARC where 10 = E/R is the initial current in the circuit. We will write a custom essay sample on Rc lab report specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Rc lab report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Rc lab report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Fig. 2. Charge vs Time during charging Fig. 3. Current vs Time during charging Plots of the charge and the current versus time are shown in Figs. 2 and 3. The charge is zero at and approaches the maximum value of CE. The current has the maximum value of lo=E/R at and decays exponentially to zero as t . The product ARC appears in both equations and has the dimension of time. The exponents in those equations must be dimensions. ARC is called the time constant of the circuit and is represented by the symbol r. It is the time in which the current in the circuit has decreased to Lie of the initial value. Likewise, in a time the charge increases from zero to C E(el-l). The potential across the resistor will change as (10) and across the capacitor as q PVC = (11) Both functions change in time as exponential functions with the time constant t=ARC. Discharging a capacitor. Assume that the capacitor in Fig. 1 is fully charged and the potential across the capacitor is equal that of the battery. At time the switch is thrown from a to b so that the capacitor can discharge through resistor R. Substituting in CEQ. 4 we can write the discharging equation: (12) The solution for this equation is = Joe (13) The current can be obtained by differentiating CEQ. 3 i(t)= = ole (14) The minus sign indicates that the direction of the discharge current is in the direction opposite to the charging current. Both functions, q(t) and i(t), decay exponentially with the same time constant = ARC. The potential IVR across the resistor is given by (15) and the potential across the capacitor, PVC, changes in time as ) TTL PVC(t)- (16) Fig. 4. Resistor-capacitor network 2. Procedure The time constant t may be determined experimentally either during charging or discharging of the capacitors. You will use the R-C network shown in Fig. The switches allow you to select different combinations of resistors and capacitors. The positions of the switches shown in Fig. 4 result in the ARC circuit with . Ox Q and C=O. XX-6 F, compare Fig. 5. Fig. 5. ARC circuit corresponding to the positions of the switches in Fig. 4. To charge the capacitor you will use a DC Power Supply, Paso model 9049. Select the 30 V range. T he R-C network is designed to work only within this range. The VARIABLE control turns the power supply on and varies the voltage from O to IV. The output voltage can be read on the bottom scale of the meter. The output terminals have different colors, black for negative terminal and red for positive. Green terminal is only for 500 and 1000 V ranges do not use it!! Charging a capacitor. Set the circuit as shown in Fig. 6. Select a resistor R and a capacitor C. Attached the electrocuted to measure the voltage across the capacitor. Close the switch and start the timer. At regular time intervals record the capacitor voltage. Fig. 6. Experimental set up to charge a capacitor. Discharging a capacitor. Charge the capacitor to the initial potential of 30 VIDE. Disconnect the power supply and close the circuit by sliding the switch to he bottom position. Simultaneously start the timer. Use the electrocuted to measure the voltage across the capacitor at the same time intervals. Repeat point (1) for other values of R and C. 3. Repeat the experiment by charging and discharging capacitors as in (1 ) and (2) but this time measure the voltage across the resistor. According to Ohms law, potential is proportional to resistance multiplied by current. Hence, the potential across the resistor is proportional to the charging current. 3. Report Plot logarithm of the capacitor voltage during charging versus time for different ambitions of R and C.
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