Ohm's Law³

I really enjoyed this brain teaser sent in by reader Barry Tigner. His dad used it to introduce him to the world of engineering and a very adequate introduction it was. There is more than one way to skin this cat. You will be rated on how you do it. I almost succumbed to building it on my bench and checking it with a meter when I had a flash of insight. Definitely an aha moment!

Imagine a cube of 1 ohm resistors arranged on the edges as so:

What is the resistance from one corner of the cube to the other?

As usual, I will be taking hints, gripes, and success stories if you care to email me.

  Answer to 'Ohm's Law³'

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