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Topic: Georg Simon Ohm


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In the News (Wed 9 Dec 09)

  
  Georg Ohm   (Site not responding. Last check: 2007-10-08)
Georg Simon Ohm, (March 16, 1789 - July 6, 1854), German physicist, was born in Erlangen and educated at the university there.
He became professor of mathematics in the Jesuits' college at Cologne in 1817 and in the polytechnic school of Nuremberg in 1833, and in 1852 became professor of experimental physics in the university of Munich, where he later died.
Ohm's name has been incorporated in the terminology of electrical science in Ohm's Law, the proportionality of current and voltage in a resistor, and adopted as the SI unit of resistance, the ohm (symbol Ω).
www.1-free-software.com /en/wikipedia/g/ge/georg_ohm.html   (173 words)

  
 Ohm   (Site not responding. Last check: 2007-10-08)
Had Ohm's brothers and sisters all survived he would have been one of a large family but, as was common in those times, several of the children died in their childhood.
Ohm's father, angry that his son was wasting the educational opportunity that he himself had never been fortunate enough to experience, demanded that Ohm leave the university after three semesters.
Ohm had believed that his publications would lead to his receiving an offer of a university post before having to return to Cologne but by the time he was due to begin teaching again in September 1827 he was still without such an offer.
www-groups.dcs.st-and.ac.uk /~history/Mathematicians/Ohm.html   (1915 words)

  
 Adventures in CyberSound: Ohm, Georg Simon
Ohm's scientific contemporaries were slow to recognize his achievement, failing to realize how closely his conclusions were derived from careful experimental work and especially how his discovery ordered vast quantities of existing experimental data.
The ohm, is the unit of electrical resistance, which is equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals.
Ohm's Law states that the strength of an unvarying electric current is directly proportional to the electromotive force E, and inversely proportional to the resistance R of the circuit concerned.
www.acmi.net.au /AIC/OHM_BIO.html   (618 words)

  
 ..:Physics 30 - {Unit III - LessonIII_2_5}:..
Georg Simon Ohm was a German physicist born in Erlangen, Bavaria, on March 16, 1787.
Ohm was forced to resign from his high-school teaching position and he lived in poverty and shame.
In 1849, Georg Simon Ohm was finally recognized for his efforts by being appointed as a professor at the University of Munich.
www.saskschools.ca /curr_content/physics30/elect/lessoniii_2_5.html   (386 words)

  
 GEORG SIMON OHM - LoveToKnow Article on GEORG SIMON OHM   (Site not responding. Last check: 2007-10-08)
Nowadays Ohms Law, as it is called, in which all that is most valuable in the pamphlet is summarized, is as universally known as anything in physics.
But this involves an assumption, undoubtedly true for small temperature-gradients, but still an assumption, viz, that, all else being the same, the flux of heat is strictly proportional to the gradient of temperature.
An exactly similar assumption is made in the statement of Ohms law, i.e.
www.1911encyclopedia.org /O/OH/OHM_GEORG_SIMON.htm   (287 words)

  
 Radio-Electronics.Com :: Georg Simon Ohm   (Site not responding. Last check: 2007-10-08)
Georg Simon Ohm was born on 18th March 1789 in Erlangen in Bavaria.
Georg entered school at the age of 11 and he proved to be a bright student, and in 1805 he moved on to University at Erlangen.
Whilst doing this Ohm noticed that the type of conductor had an effect on the flux and as a result he performed experiments to find out if there might be any relationship between the voltage, current and the material of the wire.
www.radio-electronics.com /info/radio_history/gtnames/ohm.php   (675 words)

  
 Georg Simon Ohm: The Discovery of Ohm's Law
Georg Ohm, German mathematician and physicist, began his important publications in 1825.
Ohm's law, named after its discoverer, states that the potential difference V between the ends of a conductor or resistor R and the current I flowing through R are proportional at a given temperature:
Ohm's law is never completely accurate, if R is assumed to be constant, for "real world" devices, because no real device is an ohmic device for every voltage and current - at some level, the device will open or short, for example, by burning up or arcing.
www.juliantrubin.com /bigten/ohmlawexperiments.html   (825 words)

  
 The Inventors (E)
Georg Simon Ohm's father was a rather remarkable man who had educated himself to a high level and was able to give his sons an excellent education through his own teachings and brought them to a high standard in mathematics, physics, chemistry and philosophy.
Ohm's firsts paper published in 1825 examines the decrease in the electromagnetic force produced by a wire as the length of the wire increased.
Georg Simon Ohm, a German schoolmaster, showed that current depended on the resistance of the wire circuit it flowed through, just as water flows more easily in a short, wide pipe than through a long, thin garden hose.
www.theelevatormuseum.org /e/e-11.htm   (494 words)

  
 Scientist Profiles/Georg Simon Ohm   (Site not responding. Last check: 2007-10-08)
The ohm is a unit of electrical resistance and it was named for him.
It is equal to that of a conductor in which a current of one ampere is produced by a potenital of one volt across its terminals.
For the latter part of his life, Ohm was a professor of experimental physics at the University of Munich.
www.sciencetrek.net /ohm.htm   (85 words)

  
 Color Code, Resistor Tutorial, Formulas, Georg Simon Ohm, What is "Rho".
Georg Simon Ohm was born on March 16, 1789 in the city of Erlangen in Bavaria, which is now Germany.
Ohm was sent to Switzerland where, in September 1806, took up a post as a mathematics teacher in a school in Gottstadt bei Nydau.
These papers continue Ohm's deduction of results from experimental evidence and, particularly in the second paper, he was able to propose laws which went a long way to explaining results of others working on galvanic electricity.
www.uoguelph.ca /~antoon/gadgets/resistors/resistor.htm   (2234 words)

  
 George Ohm
Using equipment of his own creation, Ohm determined that the current that flows through a wire is proportional to its cross sectional area and inversely proportional to its length or Ohm's law.
Ohm was forced to resign from his high-school teaching position and he lived in poverty and shame until he accepted a position at Nüremberg in 1833 and although this gave him the title of professor, it was still not the university post for which he had strived all his life.
Ohm was afraid that the purely experimental basis of his work would undermine the importance of his discovery.
www.corrosion-doctors.org /Biographies/OhmBio.htm   (714 words)

  
 Georg Ohm
Ohm became professor of mathematics at the Jesuits' College at Cologne in 1817.
The most important aspect of Ohm's law is summarized in his pamphlet Die galvanische Kette, mathematisch bearbeitet (1827; The Galvanic Circuit Investigated Mathematically).
While his work greatly influenced the theory and applications of current electricity, it was so coldly received that Ohm resigned his post at Cologne.
fys.kuleuven.be /pradem/fysici/Ohm.html   (145 words)

  
 Famous Mathematicians
Georg Simon Ohm was born to Johann Wolfgang Ohm and Maria Elizabeth Beck in 1787 in Erlangen.
Ohm entered the University of Erlangen but lost funding for it by his father after three semesters because Georg was too interested in student life.
Ohm began to seriously experiment and publish after he realized it would be what it would take to reach his life goal.
www.georgiasouthern.edu /~martha/famousmathematicians.html   (3893 words)

  
 ohm --  Encyclopædia Britannica
In the case of direct current (DC), the conductance in siemens is the reciprocal of the resistance in ohms (S = amperes per volts); in the case of alternating current (AC), it is the reciprocal of the impedance in ohms.
A former term for the reciprocal of the ohm is the mho (ohm spelled backward).
By means of chemical reactions within the battery, a potential difference is created between the terminals, and electrons flow in the conductor in one direction, away from the negative terminal toward the positive.
www.britannica.com /eb/article-9056863?tocId=9056863   (656 words)

  
 Ohm
Ohm utilized as an analogy to conductivity, the mathematical physics governing the flow of liquids and the thermodynamic equations of Fourier governing the dissipation of heat within a body.
His results, now known as Ohm¹s law, were initially dismissed, and full recognition of his work did not come until 1841 when he was awarded the Copley Medal of the Royal Society and, belatedly, in 1881 when the International Electrical Congress established the ohm as the basic unit of resistance.
As a preliminary to the formulation of his fundamental laws, Ohm defined the electroscopic force operationally as that force the presence of which was detected by means of an electroscope, and the quantity of electricity of a body as the product of the magnitude of its electroscopic times its volume.
www.sparkmuseum.com /BOOK_OHM.HTM   (236 words)

  
 MSN Encarta - Search Results - Georg Simon Ohm   (Site not responding. Last check: 2007-10-08)
Ohm, Georg Simon (1787-1854), German physicist, best known for his research on electrical currents.
He was born in Erlangen and educated at the...
In 1800 another Italian scientist, Alessandro Volta, announced that he had created the voltaic pile, a form of electric battery.
ca.encarta.msn.com /Georg_Simon_Ohm.html   (126 words)

  
 AllRefer.com - Georg Simon Ohm (Physics, Biography) - Encyclopedia
Georg Simon Ohm[gA´Orkh zE´mOn Om] Pronunciation Key, 1787–1854, German physicist.
His study of electric current led to his formulation of the law now known as Ohm's law.
The unit of electrical resistance (see ohm) was named for him.
reference.allrefer.com /encyclopedia/O/Ohm-Geor.html   (171 words)

  
 Georg Simon Ohm Biography / Biography of Georg Simon Ohm Main Biography
The German physicist Georg Simon Ohm (1789-1854) was the discoverer of the law, named for him, which states the exact relationship of potential and current in electric conduction.
Georg Ohm was born on March 16, 1789, in Erlangen, Bavaria, the eldest of seven children.
He cultivated the obvious mathematical talents of Georg and his younger brother, Martin, and the two soon gained the reputation of being the latter-day version of the famed Bernoulli brothers.
www.bookrags.com /biography-georg-simon-ohm   (256 words)

  
 Articles - Georg Ohm   (Site not responding. Last check: 2007-10-08)
Georg Simon Ohm, (March 16, 1787,(or 1789) Erlangen, Germany - July 6, 1854,Munich) German physicist, was born in Erlangen and educated at the university there.
He became professor of mathematics in the Jesuits' college at Cologne in 1817 and in the polytechnic school of Nuremberghe bummed everyone to death in 1833, and in 1852 became professor of experimental physics in the university of Munich, where he later died.
Ohm's name has been incorporated in the terminology of electrical science in Ohm's Law (which he first published in Die galvanische Kette mathematisch bearbeitet), the proportionality of current and voltage in a resistor, and adopted as the SI unit of resistance, the ohm (symbol Ω).
www.efireplaces.net /articles/Georg_Ohm   (225 words)

  
 The Hutchinson Dictionary of Scientific Biography: Ohm, Georg Simon (1789-1854)@ HighBeam Research   (Site not responding. Last check: 2007-10-08)
was a German physicist who is remembered for Ohm's law, which relates the current flowing through a conductor to the potential difference and the resistance.
Ohm was born at Erlangen, Bavaria, on 16 March 1789.
He received a basic education in science from his father, who was a master locksmith, and in 1805 he entered the University of Erlangen.
www.highbeam.com /library/doc0.asp?DOCID=1P1:28910223&refid=ip_encyclopedia_hf   (214 words)

  
 Georg Simon Ohm --  Encyclopædia Britannica
Thus, if the voltage V (in units of volts) between two ends of a wire made from one of these materials is tripled, the current I (amperes) also triples; and the...
The German physicist Georg Simon Ohm discovered the basic law of electric conduction, which is now called Ohm's law.
Chronicles Simon's many battles with doomsayers, neo-Malthusians, and others convinced that the world was becoming increasingly unsustainable.
www.britannica.com /eb/article-9056864   (696 words)

  
 Georg Simon Ohm   (Site not responding. Last check: 2007-10-08)
One of Erlangen's most famous sons was Georg Simon
Ohm (1789-1854), known to students of physics all
Georg Ohm is commemorated in Erlangen with a technical
www.users.globalnet.co.uk /~prow/erlangen/ohm.htm   (62 words)

  
 MSN Encarta - Georg Simon Ohm
Search for books and more related to Ohm, Georg Simon
He was born in Erlangen and educated at the University of Erlangen.
His formulation of the relationship between current, electromotive force, and resistance, known as Ohm's law, is the basic law of current flow.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761570001   (116 words)

  
 MSN Encarta - Search View - Georg Simon Ohm   (Site not responding. Last check: 2007-10-08)
MSN Encarta - Search View - Georg Simon Ohm
The search seeks the exact word or phrase that you type, so if you don’t find your choice, try searching for a key word in your topic or recheck the spelling of a word or name.
The unit of electrical resistance was named the ohm in his honor.
encarta.msn.com /text_761570001__1/Georg_Simon_Ohm.html   (176 words)

  
 Georg Simon Ohm - OneLook Dictionary Search
Ohm, Georg Simon : The American Heritage® Dictionary of the English Language [home, info]
Georg Simon Ohm, Ohm, Georg Simon : Dictionary.com [home, info]
Ohm, Georg Simon : CCI Computer [home, info]
www.onelook.com /cgi-bin/cgiwrap/bware/dofind.cgi?word=Georg+Simon+Ohm   (179 words)

  
 Georg Ohm -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
Georg Ohm -- Facts, Info, and Encyclopedia article
This work, the germs of which had appeared during the two preceding years in the journals of Schweigger and Poggendorff, has exerted an important influence on the development of the theory and applications of (A flow of electricity through a conductor) electric current.
(A unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere) Ohm
www.absoluteastronomy.com /encyclopedia/g/ge/georg_ohm.htm   (129 words)

  
 Georg Simon Ohm Term Papers, Essay Research Paper Help, Essays on Georg Simon Ohm
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