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2.0 General Questions·What is Ohms Law?
·Where can I find Ohms Law calculators?
·Where can I find Circuit Analysis tools?
·How to read Resistor Color Codes?
·Where can I purchase parts?
·Where can I find Printed Circuit Board Fabricators
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Ohm's Law defines the relationships between (P) power, (E) voltage, (I) current, and (R) resistance. One ohm is the resistance value through which one volt will maintain a current of one ampere.
•( I ) Current is what flows in a wire or conductor like water flowing through a pipe. Current is measured in (A) amperes or amps.
•( E ) Voltage is the difference in electrical potential between two points in a circuit. It's the push or pressure behind current flow through a circuit, and is measured in (V) volts.
•( R ) Resistance determines how much current will flow through a component. Resistors are used to control voltage and current levels. A very high resistance allows a small amount of current to flow. A very low resistance allows a large amount of current to flow. Resistance is measured in ohms.
•( P ) Power is the amount of current times the voltage level at a given point measured in wattage or watts.
The relationships of Current, Voltage, Resistance, and Power are given here:
A great example provided by Jason  can be found Here
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by Macy edited by Riss_Centaur
last modified: 2006-02-06 18:38:22 |
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You can find several calculators online, a few examples can be found at
The 12Volt.com
Electrician.com
MCsquared.com
CrownAudio.com
You can find many other useful calculators at 101Science.com
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by Macy |
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rockotman suggested a demo download from Orcad that allows you to run their software to do layouts and analysis.
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by Macy |
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There is a good link at Xtronics and another from Samengstrom.com.
DannyG.com offers a nice little calculator to find Resistor Values from color codes.
Resistor Color Codes are also being discussed Here.
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by Macy
last modified: 2006-02-07 11:20:19 |
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You can find a list of resources recommended by our forum members Parts, Parts!.
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by Macy |
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Some of our members posted several links where you may obtain printed circuit board fabricators, you can find that list here »Printed Circuit Board Fabricators .
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by Macy |
