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The Cube Resistors

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

 

Puzzle ID:#1623
Fun:*** (2.17)
Difficulty:*** (3.02)
Category:Science
Submitted By:anilrapire*

 

 

 



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?


Hint

There 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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