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12-28-2010, 11:26 PM #1
 Class 2 Laser Join Date: Dec 2010 Location: Halifax, NS, Canada Posts: 315 Rep Power: 21
enigmahack
Class 2 Laser

Join Date: Dec 2010
Posts: 315
Rep Power: 21
Eletricity Basics

I'm starting to put this together, simply because there's a LOT of people here that know their stuff with electronics... Sadly I'm not one of them. So anyway in my journey to learn about eletricity and such, I'll be putting that info in here, in hopes that I can help people that know less about eletricity than I do.

OK, this is from the early 50's it looks like, but from what I can tell the information *With the exception of the perodic table of elements containing less than 100 elements* seems pretty accurate. This is more along the lines of the basic theory, which should hopefully answer some of your basic questions like "What's the difference between amps and volts anyway?"

YouTube - Basic electricity 1/2 (pt1)
YouTube - Basic electricity 2/2 (pt2)

For a COMPLETE mathematical explanation of what Voltage is:

And to make it a little more relevant, he talks about electric current here:

YouTube - Electric Current, derekowen's Channel

This has been blowing my mind, only because I didn't get WHY we had to do algebra back in grade 9, but this is a very hands-on practical USE of algebra which... I wish I knew back in grade 9 because then I might have wanted to actually pay more attention. At any rate, it makes a HECK of a lot more sense now after watching it. That guy in general has a lot of knowledge with physics and is definitely worth a watch. (Check out his channel - great explanations of everything, analogies, diagrams, etc.)

Some useful tools:

Ohm's Law Calculators (Thanks Coherent Light)
Graphical Resistance Calculator (Thanks Kevlar)
LM317 Current Calculator - Electric Circuit (Thanks Kevlar)

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Last edited by enigmahack; 12-29-2010 at 01:06 AM.

12-28-2010, 11:31 PM #2
 Class 3R Laser Join Date: Jul 2010 Location: Hill Country, TX Posts: 2,185 Rep Power: 19387
Coherent Light
Class 3R Laser

Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 19387
Re: Eletricity Basics

Here is a good link for You to include.

Ohm's Law Calculators
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Coherent::

12-28-2010, 11:42 PM #3
 Class 3R Laser Join Date: Apr 2010 Location: Mass Posts: 1,353 Rep Power: 102
Kevlar
Class 3R Laser

Join Date: Apr 2010
Location: Mass
Posts: 1,353
Rep Power: 102
Re: Eletricity Basics

Good idea. Here is an easy resistor calculator. Just plug in the colored strips and it will tell you what the value is.

Graphical Resistance Calculator

Here is a handy LM317/LM338 calculator:

http://www.reuk.co.uk/LM317-Current-Calculator.htm

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