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Friday, September 29 2006, 20:07:20 #36749 Electronics Basics: Ohms Law I'm now in my second year of trade school and am learning about basic electricity. I thought I would post something I've learned..
Useful in dianosing any electrical circuit. wikipedia.org wrote: Ohm's law states that, in an electrical circuit, the current passing through most materials is directly proportional to the potential difference applied across them. In mathematical terms, this is written as: I = E divided by R (I - Current, E - Voltage, R - Resistance) where I is the current, V is the potential difference, and R is a proportionality constant called the resistance. The potential difference is also known as the voltage drop, and is sometimes denoted by E or U instead of V. The SI unit of current is the ampere; that of potential difference is the volt; and that of resistance is the ohm, equal to one volt per ampere. The law is named after the physicist Georg Ohm, who published it in 1826
http://www.the12volt.com/ohm/ohmslaw.asp Some good links I've found: Wikipedia.org on Ohms Law Image-ination.com on Ohms Law Nasa on Ohms Law Electronics-tutorials.com on Ohms Law csgnetwork.com - Ohms Law Calculator Here's a good random link for physics java applets for formulas http://www.walter-fendt.de/ph14e/index.html Enjoy! |
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Saturday, September 30 2006, 14:17:29 #36757 Awesome! Your second graphic ownz! |
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