Voltage Definition in Physics

Voltage is a representation of the electric potential energy per unit charge. If a unit of electrical charge were placed in a location, the voltage indicates the potential energy of it at that point. In other words, it is a measurement of the energy contained within an electric field, or an electric circuit, at a given point. It is equal to the work that would have to be done per unit charge against the electric field to move the charge from one point to another. Voltage is a scalar quantity; it does not have direction. Ohms Law says voltage equals current times resistance. Units of Voltage The SI unit of voltage is the volt, such that 1 volt 1 joule/coulomb. It is represented by V. The volt is named after Italian physicist Alessandro Volta who invented a chemical battery. This means that one coulomb of charge will gain one joule of potential energy when it is moved between two locations where the electric potential difference is one volt. For a voltage of 12 between two locations, one coulomb of charge will gain 12 joules of potential energy. A six-volt battery has a potential for one coulomb of charge to gain six joules of potential energy between two locations. A nine-volt battery has a potential for one coulomb of charge to gain nine joules of potential energy. How Voltage Works A more concrete example of voltage from real life is a water tank with a hose extending from the bottom. Water in the tank represents stored charge. It takes work to fill the tank with water. This creates a store of water, as separating charge does in a battery. The more water in the tank, the more pressure there is and the water can exit through the hose with more energy. If there were less water in the tank, it would exit with less energy. This pressure potential is equivalent to voltage. The more water in the tank, the more pressure. The more charge stored in a battery, the more voltage. When you open the hose, the current of water then flows. The pressure in the tank determines how fast it flows out of the hose. Electrical current is measured in Amperes or Amps. The more volts you have, the more amps for the current, same as the more water pressure you have, the faster the water will flow out of the tank. However, the current is also affected by resistance. In the case of the hose, it is how wide the hose is. A wide hose allows more water to pass in less time, while a narrow hose resists the water flow. With an electrical current, there can also be resistance, measured in ohms. Ohms Law says voltage equals current times resistance. V I * R. If you have a 12-volt battery but your resistance is two ohms, your current will be six amps. If the resistance were one ohm, your current would be 12 amps.

On July 5Th Of 1852, Fredrick Douglass Gave A Speech To

On July 5th of 1852, Fredrick Douglass gave a speech to a mainly female audience at the Rochester Anti-Slavery Sewing society rally. This speech is famously known as â€Å"What to the slave is the fourth of July?†. This speech is known for being one of the most eloquent and well-spoken anti-slavery speeches of its time. He starts by discussing the importance of the fourth of July to the white men who are able to experience the entirety of freedom in America. He then counters what he earlier said by saying that a man who is not fully free has not been liberated and doesn’t have anything to celebrate. This speech heavily focused on issues such as human rights and human security, as well as beliefs from the enlightenment movement, which were†¦show more content†¦At this time period it was international law that the enslavement of African men and woman was legal. Fredrick Douglass logically tackles this issue with reason by stating that there is no one who wo uld be in favor of becoming a slave themselves, due to Natural Law, so how is it fair to make someone become a slave when they themselves wouldn’t become one. There are signs of him showing an understanding in the global civil society and idealism. Fredrick talks about the uprising of the colonists against the British crown’s rule. He depicts our forefathers and other revolutionaries as sensible and reasonable people who understood they were being oppressed and wanted true liberty and freedom. I believe he did this for the main reason of not being automatically dismissed by white patriotic men who won’t listen to a black man talk about the rights of people. This tactic is commonly used by politicians today to not offend and eliminate a portion of possible voters. Mr. Douglass maintained to stay a peacekeeping activist in this time period, which is very impressive given the amount of persecution his culture endured. This style of pleasing everyone while still getting your point across is an effective form of communicating that is very impressive for the given time period. Not only was this speech obviously advocating for African AmericanShow MoreRelatedThe Declaration Of Independence, All Men Are Created Equal1442 Words   |  6 PagesThe Declaration of Independence states â€Å"all men are created equal.† However, that concept does not contribute to Fredrick Douglass and Red Jacket, who represent two different cultures with a similar dilemma. Both argue the hypocrisy of the document, that only applies to a certain population of the United States of America. In addition, Douglass and Red Jacket are defending their beliefs among the injustices that they have came across with the â€Å"whites†. Even though Red Jacket is speaking up amongRead More Frederick Douglass’ Fourth of July Speech Essay1390 Words   |  6 PagesOn July 5th of 1852, the Ladies Antislavery Society of Rochester requested that emancipated slave, Fredrick Douglass, speak for their celebration of the United States’ national independence. Douglass accepted this request and presented a powerful speech that explained and argued his true beliefs and feelings concerning this event. He considered their decision to request him as a speaker on that day to be a mockery of his past and of the ongoing status of blacks as slaves in America at the time

Malcoms Final Speech Free Essays

Malcolm’s Final Speech Shakespeare’s written work has stood the test of time and Macbeth is an excellent example of his classic literature. At the end of the play the final scene is about who will become the King of Scotland. After the death of Macbeth, Malcolm is declared King. We will write a custom essay sample on Malcoms Final Speech or any similar topic only for you Order Now He is declared King since it was his birthright because his father was King before Macbeth killed him. Shortly after he was declared as the new King, Malcolm makes a speech of acceptance. One can look at this passage from many different perspectives. During his speech he talks about rewarding the Thanes and kinsmen that that fought along side him by declaring them the first Earls of Scotland. This demonstrates his honesty, loyalty and it also proves that he is a trustworthy King. Some might argue that this demonstrates that Malcolm is also very trusting of other people. This was one of the traits shown by his father; the trait that led to his downfall. He was too trusting in Macbeth, which gave him the opportunity to kill Duncan. This is not the only item that Malcolm addressed in his speech. He also addresses the state of Scotland. He wants those that were exiled by Macbeth to return home, and for those that supported Macbeth to be exiled. Malcolm wants to exile all of Macbeth’s supporters to ensure that there is not revolt or uprising against him when the nation of Scotland remains in a fragile state. His decisiveness in this regard, is a good quality for a King to have. The most crucial aspect of his speech is when he announces the death of Lady Macbeth. This is critical because Lady Macbeth was the true ruler of Scotland. Macbeth was nothing more than a puppet and Lady Macbeth was the puppeteer. Macbeth was an honorable man turned tyrant by the manipulation of his wife. Lady Macbeth was not evil, but she was driven by greed for power and control. No matter what her status was in the political world, she was not happy with it until she was finally the queen of Scotland. Lady Macbeth took her own life. There were two factors that contributed to Lady Macbeth taking her own life. One of those factors was the fact that she could feel the power slipping away from her. She knew her power and control would not last much longer and she could not accept that. The second, and larger contributing factor that led to her suicide was her conscience. She was tormented because of the things that she and her husband had done. They were horrendous and horrific acts that weighed heavily on her mind. She could not take it anymore, so she decided to jump off of a balcony. Scotland was set free by the death of Lady Macbeth. At the end of his speech Malcolm states that with God by his side, he believes that he will be able to restore peace and harmony in Scotland. In the final line of his speech he invites all to Scone to watch him be crowned and reclaim what was stolen from him. After having examined Malcolm’s speech, it reveals how trusting and decisive Malcolm was and how Lady Macbeth was truly in charge during Macbeth’s reign. Malcolm is a perfect foil to show Macbeths weakness and Lady Macbeth’s power over him. This leaves the reader with the idea that in fact Macbeth was nothing more than a weak coward. How to cite Malcoms Final Speech, Papers

Babbit Essay Research Paper This is the free essay sample

Babbit Essay, Research Paper This is the narrative of a adult male named George F. Babbitt. Babbitt is, in my head, the finest illustration of the mercenary individual. Babbitt bases his life purely on what he has and his societal standing. Babbitt cares small for anyone but himself. He treats his married woman with small regard and treats her severely. He merely seems to wish his girl Tinka. His other kids, Ted and Verna, seem to hold small importance to him. Babbitt # 8217 ; s household seems to function as an irritation to him through the whole narrative. Babbitt really seems to wish really few people except for the brief minute when it seems to be progressing him socially. Babbitt lives in Floral Heights which is a instead ritzy lodging development in Zenith. He describes his house and it # 8217 ; s flawlessness. He talks about the towels in the bathroom. He says that one towel is reserved for invitees but that it is neer used because even the invitees are excessively frightened to utilize it. We will write a custom essay sample on Babbit Essay Research Paper This is the or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page One forenoon Babbitt is so irritated with his household that when he discovers that all the household towels are wet he uses the invitee towel. This is Babbitt # 8217 ; s ain small signifier of rebellion. Babbitt is a existent estate agent. He talks about fixing to travel to work. He says that he has to do certain he wears the perfect outfit and that everything lucifers everything else. Babbitt takes rather awhile to fix because he is somewhat slow about happening his apparels. He can # 8217 ; t wear one jacket with one brace of bloomerss he has to have on merely the right 1. Babbitt # 8217 ; s house is non truly a house but instead a construction. Babbitt does non even kip in his sleeping room but instead on a sleeping porch. He can # 8217 ; t afford to # 8220 ; upset # 8221 ; his room. He besides is non excessively fond of his married woman and feels no dedication to her what so of all time. So Babbitt slumbers on the porch. His married woman is much more dedicated to her hu bby and she tries to assist him. Babbitt does non like her though and continually stairss all over her. Mrs. Babbitt runs the house while her hubby plant. She makes dinner and attempts to assist him happen apparels that lucifer. She takes attention of the kids who are besides instead unappreciative. Mrs. Babbitt does non hold much of a function in the narrative except as an obstruction to her hubby. She seems really diffident about her hubby # 8217 ; s devotedness but when she inquiries him he fundamentally ignores her. Mrs. Babbitt is besides in charge of keeping dinner parties with the neighbours. This is the proper thing to make in Floral Heights and they attend and throw dinner parties on the weekend. They besides have card games. Mr. Babbitt is besides really fond of his # 8220 ; cocktails # 8221 ; . He takes great attention in the mode with which he mixes the drinks. He even goes to particular attempts to happen # 8220 ; black market # 8221 ; gin. Another merchandise that Babbitt is fond of is his coffin nails and there are a few chapters dedicated to them. Babbitt discusses the assorted lengths that he goes to to seek and discontinue smoke. He says that he locks his coffin nails in the bottom shortss of cabinets to forestall himself from easy happening them. This does non assist and he continues to smoke. He in fact begins to smoke more frequently. He buys himself a nice cigar cutter and begins to prize it as his favourite ownership. Babbitt takes the smallest things really earnestly. He is concerned non merely with what people think of him but besides what he owns. He is invariably seeking to be the best or at least at par with his workers. Babbitt loves the amusing strips and he reads them every dark. He reads them carefully so that he can analyse every item. He reads them because he finds them intellectually exciting. He makes certain that all of his images are hung exactly in the middle of the walls and that everything is perfect in his house. He seems to find comfort in the small details. He mainly does it to try and impress the people that come and stay at his house. Babbitt has many people that he calls his friends. They are merely acquaintances but among these people are Paul and Zilla Rieslings. Every year the Babbitts travel to Maine with them. This year Babbitt decides that he wants to go on ahead so that he can take a break. He and Paul go together and the girls were going to follow. The men have a great time without the women. They stayed out every night and partied. Then they would crawl home after watching some women dance around. When the women finally arrive the real life comes back and the men are questioned about their whereabouts. They finally decide not to go out anymore. When Babbitt arrives at home his colleagues hold him in high esteem. He makes a few speeches and slowly moves up the society ladder. He is slightly disappoi nted that he does not become more accepted by the society climbers. Babbitt does not care though and he continues to have people over for dinner parties. He tries to convince his children that they want respectable jobs. Ted, his son, wants to train at home and not attend college. He is trying to explain this to his father who does not like the idea. Ted says that he doesn’t really want to go to college but that he would rather go to Japan. This upsets Babbitt. Babbitt tries to explain his point but then realizes that it could be worse. He decides that his son isn’t really too bad. Babbitt decides that he has a liking for young women. He begins to hit on anything n a skirt while his wife is out of town. He seems to have little remorse and actually tries to find attractive females. He finds that his mind is sinking into the gutter. If a young woman comes into his office he finds that he flirts with her. Mrs. Daniel Judique made the mistake of walking into his office on one of these days. Babbitt has an affair of sorts with her. He also has a crush on the young woman next door. She is young and married. She turns him down. When Mrs. Babbitt comes home she asks about his time alone and he leaves out the parts about the young women. She knows but she tries to accept it. The Babbits continue entertaining their guests. Mrs. Babbitt handles herself well and Babbitt finds is way back onto the social ladder. He finds out that the other people still like him. He becomes the vice president of the a club in his city. He is liked by most of the men in the town and begins to throw more parties. His wife becomes more and more annoyed about his â€Å"rendez-vous† with young ladies. He tries to escape her questions but she persists. Paul becomes so annoyed with Zila that he shots her in the shoulder and ends up in jail. He feels really bad and is glad that Babbitt is still his friend. Mrs. Babbitt says that she can’t believe that he did it. Soon Mrs . Babbitt becomes ill. Babbitt realizes that he was wrong to be so mean to her but still doesn’t really change. Ted comes home and tells his parents that he is going to be married. His mother is happy but surprised and she encourages him. Ted asks for his fathers approval while the ladies go to the kitchen. Babbitt tells Ted that he was never really happy with his life and that he should do whatever he thinks will make him happy. He tells Ted that all he really wants is for Ted to be happy and that he will be. They go together to face the parents of Ted’s new wife as well as a few other neighbors. In the end everyone is slightly happy but