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Homer_simpson

Fri Jul 30, 2010 12:37 pm


a question of electronics

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i assumed that most people who know a thing or two about computers possibly know a thing or two about electronics so it seemed appropriate to post here.

this is a question of equivalent resistance and kirchoffs  rule. All resistors in the circuit have the same resistance R. what is the equivalent resistance between point A and B. the two images that i've attached are one and the same one is the 2D projection of the other.
http://compsci.ca/v3/uploads/attachments/k1_230.jpghttp://compsci.ca/v3/uploads/attachments/k2_215.jpg


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Tony

Fri Jul 30, 2010 1:36 pm


RE:a question of electronics

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Obligatory:

http://imgs.xkcd.com/comics/nerd_sniping.png

Now, it's been too long since ECE101 days...

You could build that circuit in a lab and read the answer with a multimeter... but that doesn't give you much points for the solution steps.

If you run some current into A and out of B, you can apply KCL. Similarly if you throw a battery into the circuit, you can apply KVL.

Once you have a bunch of related formulas, throw them into Prolog and wait for it to crunch through the equations


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Homer_simpson

Fri Jul 30, 2010 4:59 pm


Re: a question of electronics

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LOOOL... I friggin loved that... its so true, but i can't help myself.

edit: nevermind btw i figured it out. =D