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| Electronic Theory Basic principles, ideas, concepts, laws, and formulas behind electronics. |
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| Experienced Member | i sherched the net and i only managed to find some online calculators... so i guess i must make a start... Resistance R = V/ I Current I = V / R Voltage V = I * R Capacitive reactance 1/(2*pi*f*C) Power P = V * I Last edited by whiz115 : 10th October 2007 at 04:48 AM. |
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| New Member | It would be almost impossible to write down “all” of the equations used in electronics. But, they all can be derived from a few basic principals (or equations). You should become so familiar with these first principals that the few equations that express them are just part of your work a day vocabulary. Things like Ohm's law and resonant frequency equations, should be second nature and generally, things that are more complex either are more complex because you have made it more complex because you don’t understand the fundamental principals that are involved, or you are dealing with something that is so specialized that you simply will have to go back to the books. But, nonetheless, I keep basic circuits and equations that I rarely need, on 5X7 cards in a file. The card is big enough that I can have examples of how to use the equation. I also keep circuit ideas in my 5X7 card file. |
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| Experienced Member | They're not all here, but this will do for a start: http://www.cvs1.uklinux.net/calculators/ I swear I've found better sites, but a quick Google just now got this up on the first page. Later! kenjj
__________________ All my pencils *used* to have erasers! |
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| Experienced Member | And if you're into stepper motors, this may prove useful: http://www.linengineering.com/site/r...calculator.htm Later still! kenjj
__________________ All my pencils *used* to have erasers! |
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| Experienced Member | If we gather enough formulas i think i'm going to build an Excel spreadsheet and i'll upload it here... If a simple calculator is useful everywhere, then the same goes for most of us about a calculator specially designed for electronics. The spreadsheet calculator is good choice because it's easy and most portable computing devices and mobiles phone can handle. |
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| Experienced Member | Quote:
whiz115: Someone already did that: http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html | |
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| Experienced Member | you posted the original question on the 8th of October. It is now the 2nd of November. If you had spent part of that time making your own spreadsheet calculator for whatever formulas you wanted, you would have had it well on its way, if not completed, by now. |
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| Experienced Member | Quote:
I already have the calculator i want for 5-6 formulas i don't want to forgot and i'm interested to have with me. i was talking about a most complete calculator that can be useful to many people and not only to me. But as you can see from the messages others are happy with the web pages and others have written them down somewhere else... Do you think i should spend time while nobody is interested? | |
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