Ohms Law Series-Parallel Circuits Calculation Essay Example for Free

Ohms Law Series-Parallel Circuits Calculation Essay To end up the discussion of Series-Parallel Circuits, I would like to post this last one remaining topic which is about Ohms Law of Series-Parallel Circuits for currents and voltages. I did not even mentioned in my previous topics on how to deal with its currents and voltages regarding this type of circuit connection. Ohms Law in Series-Parallel Circuits Ohms Law in Series-Parallel Circuits Current The total current of the series-parallel circuits depends on the total resistance offered by the circuit when connected across the voltage source. The current flow in the entire circuit and it will divide to flow through parallel branches. In case of parallel branch, the current is inversely proportional to the resistance of the branch that is the greater current flows through the least resistance and vice-versa. Then, the current will then sum up again after flowing in different circuit branch which is the same as the current source or total current. The total circuit current is the same at each end of a series-parallel circuit, and is equal to the current flow through the voltage source. Ohms Law in Series-Parallel Circuits Voltage The voltage drop across a series-parallel circuits also occur the same way as in series and parallel circuits. In series parts of the circuit, the voltage drop depends on the individual values of the resistors. In parallel parts of the circuit, the voltage across each branch are the same and carries a current depends on the individual values of the resistors. If in case of circuit below, the voltage of the series resistance forming a branch of the parallel circuit will divide the voltage across the parallel circuit. If in case of the single resistance in a parallel branch, the voltage across is the same as the sum of the voltages of the series  resistances. The sum of the voltage across R3 and R4 is the same   as the voltage across R2. Finally, the sum of the voltage drop across each paths between the two terminal of the series-parallel circuit is the same as the total voltage applied to the circuit. Lets have a very simple example of this calculation for this topic. Considering the circuit below with its given values, lets calculate the total current, current and voltage drop across each resistances. What is the total current, current and voltage across each resistances Here is the simple calculation of the circuit above: a. Calculate first the total resistance of the circuit: The equivalent resistance for R2 and R3 is: R2-3 = 25X50/ 25+50 = 16.67 ohms R total = 30 ohms + 16.67 ohms = 46.67 ohms b. Calculate the Total Current using Ohms Law: I1 = 120V / 46.67 Ohms = 2.57 Amp. Since R1 is in series connection, the total current is the same for that path. c. Calculating the voltage drop for R1: VR1 = 2.57 Amp x 30 ohms = 77.1 volts d. Calculate the voltage drop across R2 and R3. Since the equivalent resistance for R2 and R3 as calculated above is 16.67 ohms, we can now calculate the voltage across each branch. VR2 = VR3 = 2.57 Amp x 16.67 ohms = 42. 84 volts e. Finally, we can now calculate the individual current for R2 and R3: I2 = VR2 / R2 = 42.84 volts / 25 ohms = 1.71 Amp. I3 = VR3 / R3 = 42.84 volts / 50 ohms = 0.86 Amp. You may also check if the current in each path of the parallel branch are correct by adding its currents: I1 = I2 + I3 = 1.71 Amp + 0.86 Amp = 2.57 Amp. which is the same as calculated above. Therefore, we can say that our answer is correct.

Comparing Millers Enemy of the People, Becketts Waiting for Godot and Vonneguts Slaughterhouse-F :: comparison compare contrast essays

Human Values and Technology in Miller's Enemy of the People, Beckett's Waiting for Godot and Vonnegut's Slaughterhouse-Five Human values can't be replaced by technology. Human values can just hope to evolve as quickly as technology is expanding. If one lags behind the other, it's human values. Technology can exist and function without human values. There is a rush for Isaac Newton but that doesn't negate the need for a good philosopher. Though both technology and human values can be used hand in hand and that is the ideal situation. Too much of anything is a bad thing. It's all about finding a balance. Enemy of the People is the perfect example of how human values sometimes don't evolve as quickly as technology. The town had the technology available to make sure the hot springs were up to par but not only did they not put that technology to use but they challenged the findings with no proof of their own. The town as a whole had no experience with this type of science before. Thus, they were instantly skeptical (they also benefited financially by not believing it). But what the town should have done was step back and look at all the facts (sick visitors (Miller 35) and the low intake (Miller 36)) and made an informed decision instead of just running from the unknown. "They happen to have ability and knowledge," (Miller 45) is what Dr. Stockman told Hovstad. He assumed that these people had the same trust and knowledge in technology that he had but he was wrong. People need a way to deal with the ever-growing new technology. It was scary for the town to believe that there wer e things happening on the bacterial level (one that they couldn't see). Did the town choose not to believe the blatant truth because it would hurt them, the skewed facts or out of fear of the unknown and the consequences. Ignorance is bliss, but civilization needs to be informed of what's going on and how it affects their lives. A person can't just take things "on faith" when dealing with science, they need proof and an explanation. It's easy to follow the mass in anything (especially public opinion) but one needs to ask themselves how informed is the general public?

Interaction of Ethnic, National or Cultural Influences Essay

All around the world people are organised in societies differentiated ethnically, nationally and culturally. In our mind under the interethnic relations are traditionally understood subjectively experienced relations between people of different nationalities, between ethnic communities, which are manifested in attitudes and orientations of interethnic contacts in various areas of cooperation, national stereotypes, attitudes and behavior, and the actions of people of specific ethnic communities. It is in this area in the first place are projected economic, social and political issues. They acquire an ethnic form and deliver a lot of trouble to society, leading to inter-ethnic tensions, local ethnic conflicts, the growth of ethnic migrations. Ethnic tensions, the state of hostility, distrust, mutual complaints and dissatisfaction arises or may arise from time to time between any nations that are permanently or temporarily in contact with each other. Ethnic tensions depend on several factors: 1) The history of international relations, the historical memory of the nature of relations between the peoples at different stages (often these relationships take the form of ongoing ethnic tension); 2) the level of economic development of the parties, among representatives of different nations’ place in the system of production and property (industrial specialization, predominance of members of certain nationalities in professional and social groups, the dominance of different forms of ownership, quality of life, etc.); 3) the structure of the cultural development of the nation – the predominance of rural or urban population, the level of education and professional qualifications. There are allocated the following phenomena and processes that significantly affect the formation and strengthening of interethnic tension: 1) the lack of a consistent policy of condemnation and suppression of national manifestations of violence; 2) the possibility of negative attitudes towards representatives of the people associated in the eyes of other nations with the administrative-command apparatus; 3) the position of people who have been persecuted and mass deported during the repression, particularly those that have not been returned to their places of origin; 4) a sense of national enmity against those nationalities that, in terms of population in many regions, â€Å"live better than we do. † These representations are caused by a variety of reasons, including the identification of the people with the most frequently identified by its representatives. According to M. Walzer, positive ethnic identity is a balance of tolerance for their own and other ethnic groups, which allows us to consider it, on the one hand, as a condition of an independent and stable existence of an ethnic group, on the other – as a condition of peaceful intercultural multi-ethnic world, interactions, excluding ethnic phobias and confrontation. According to N. M. Lebedeva on ethnic tolerance, defined as the adoption of ethno-cultural differences, and the exclusion of ethnophobia and ethnic confrontations have effects such socio-psychological factors as: 1) the degree of ethnic and cultural competence; 2) psychological readiness for intercultural dialogue; 3) The experience and skills of intercultural understanding and cooperation. All these parameters are amenable to the formation and development and in need of professional development by education and socio-psychological training of intercultural interaction. Violation of a positive image of their own group tends to reduce ethnic tolerance (YA Gayurova, TG Stefanenko, AN Tatarko, FM Malhozova). 9/11 After Twins being attacked Americans stopped helping Irish Republican Army (IRA – Nationalist violent group in Northenr Ireland) when they understood what the terrorism is and what the causes and result are. After the terrorist attacks marked a surge of crimes against people from the Middle East, and other people who looked similar. Suffered even some Sikhs who wear turbans, traditionally associated with Muslims. Reported insults,attacks on mosques and other religious buildings (including the burning of a Hindu temple), and attacks on people, including one murder, September 15, was mortally wounded by Balbir Singh Sodhi, a Sikh who was mistaken for a Muslim. [130] Rating of President Bush after the attacks rose to 86%. [131] September 20, 2001 the President spoke to the nation and a joint session of Congress, regarding the events of 11 September, following the rescue and recovery operations, as well as the response of the U. S. government’s intentions. In addition, the important role played by New York City Mayor Rudy Giuliani, who deserved the appreciation of the public, both in New York and at the national level. Deportations 1941 in USSR. After the publication of the Decree of the Presidium of the Supreme Soviet of the USSR â€Å"On the resettlement of Germans living in the Volga region† of 28 August 1941 has been eliminated Autonomous Republic of the Volga Germans and produced total deportation of Germans from ASSR. For this purpose, in advance on the territory of the Autonomous Republic of NP were introduced NKVD troops. Germans were ordered within 24 hours to prepare for resettlement and a limited number of its assets to arrive at the collection points. German inhabitants of the republic were taken to remote areas of Siberia, Kazakhstan and Central Asia. According to this decree in September and October 1941 were deported 446,480 Soviet Germans (according to other sources 438 280). In September 1941, many military service persons of German nationality were sent from the front to the rear. In subsequent months, the deportation has touched almost the entire German population living in European Russia and the Caucasus that were not occupied by the Wehrmacht. The resettlement of Germans made gradually and was completed by May 1942. Totally during the war were moved up to 950 thousand Germans. 367,000 Germans were deported to the east: the republic of Komi, in the Urals, Kazakhstan, Siberia and the Altai. Babi Yar Estimate between 100 and 150 thousands jewish people were killed during WW 2 in Babi yar. There were a lot of interactions in different influences during many different events and specific situation that caused a lot of deaths of innocent people. Sometimes many cultures, nations and ethnoses are discriminated or even eliminated because of misunderstanding. It will happen untill people do not understand that there are more other non-violent ways of solving problems.

Essay on cultural revolution - 870 Words

The Cultural Revolution was the greatest educational incident chronicled in the last hundred years and it took place from 1966 to 1976. Mao Zedong was the leader of the Cultural Revolution and he wanted to bring about the Cultural Revolution by setting goals to form a more affective bureaucracy. The Cultural Revolution was a time when Red Guards fought against a democratic society and the guards attacked an aspect called the quot;4 olds.quot; The quot;4 oldsquot; were old ideas, old culture, old customs, and old habits. Furthermore, many aspects of life were forbidden or simply done away with during the Cultural Revolution. Shopkeepers were not allowed to sell clothes that resembled western style clothes and hairstylists could not†¦show more content†¦The students attending universities were the first citizens to be affected by the revolution. The students question methods of teaching and learning, and the students wanted the school to be more accepting to the society by making peasants and workers feel welcome. Foreign affairs with other countries were also practically impossible during the Cultural Revolution because of the actions of the Red Guards. The Red Guards took over China’s Foreign Relation’s Ministry, and conquered the former Soviet Union Embassy. Furthermore, these young students invaded and set fire to the British Embassy. The Red Guards beat up and abused members of the diplomatic corps, and the Red Guards tore western style apparel off female personnel. Moreover, the students were the first members of the Red Guards. The Red Guards were revolutionists who fought against the 4 olds. The Red Guards were pupils from China’s colleges and universities who were denied the ability to succeed academically. Their quot;supreme commanderquot; was Mao Zedong, and Maoists called the Red Guards quot;little revolutionary generalsquot;. The Red Guards went into citizens’ houses and threw out upper class and western style objects. The guards beat civilians up and shaved their heads. The Red Guards were not able to destroy museums and historic structures, because the buildings were blocked withShow MoreRelatedChinese Cultural Revolution717 Words   |  3 PagesThe Chinese Cultural Revolution A revolution is not a dinner party or writing an essay or painting a picture or doing embroidery; it cannot be so refined, so leisurely and gentle, so temperate, kind, courteous, restrained and magnanimous- Mao said in 1927 to a youth activist The reason for china to trying to become such a new generation was solely the opinion of Mao and his followers. Mao had seen the way the Russian revolution had gone astrayRead MoreMao Cultural Revolution1863 Words   |  8 PagesA. 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