Electronics > Beginners
Resistance across a 1k resistor cube.
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hamster_nz:
While lazing around flicking through the latest Diyode Magazine, I came across this little puzzle.

What is the resistance across a cube of 1k resistors? (see image)

There is a few nice ways to solve it, when insight comes to you.


IanB:
I would say 833.3 Ω ?

Edit: I could even say 833⅓ Ω now that the forum has been upgraded  :)
AlfBaz:
Easy, 12 x 1k resistors multiplied the alfbaz 1k cube constant of 0.069444'  :-DD
rs20:
833.33... is correct. hamster_nz, did you deliberately angle the cube in your picture to make one of the insights more obvious, or is that just a coincidence?  :D
Brumby:

--- Quote from: IanB on April 22, 2018, 12:59:04 am ---I would say 833.3 Ω ?

--- End quote ---
So would I.


--- Quote from: rs20 on April 22, 2018, 01:45:03 am ---833.33... is correct. hamster_nz, did you deliberately angle the cube in your picture to make one of the insights more obvious, or is that just a coincidence?  :D

--- End quote ---
I wouldn't have said it was that obvious.  After all, you need some angle to show the cubic structure.  But now that you've said that, there might be a few more who catch on.
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