The Cube ResistorsScience brain teasers require understanding of the physical or biological world and the laws that govern it.
Consider a cube, each edge of which has a resistor of resistance r on it. What is the resistance between two points on the same side of the cube but on opposite corners?
HintThere are two ways to solve this problem, the easy way and the hard way. Try drawing a circuit map of what's going on.
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