resistor cube

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2 total messages Started by De Rudder Jean-Louis Tue, 28 Feb 1995 10:22

#581

Author: De Rudder Jean-Louis
Date: Tue, 28 Feb 1995 10:22

9 lines
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Who helps me to solve the resistor-cube? i.e.

- take a cube, put a resistor (all the same resistance R) on each of the
twelve legs
- Q:  What is the equivalent resistance between two space-diagonally
opposite points of the cube?

Thanks for your help.
Tom.

Re: resistor cube

#576

Author: David Gillooly
Date: Tue, 28 Feb 1995 16:52

21 lines
1366 bytes

In <3iuthh$e1i@rc1.vub.ac.be> hw50485@vub.ac.be (De Rudder Jean-Louis) 
writes: 

>
>Who helps me to solve the resistor-cube? i.e.
>
>- take a cube, put a resistor (all the same resistance R) on each of 
the
>twelve legs
>- Q:  What is the equivalent resistance between two space-diagonally
>opposite points of the cube?
>
>Thanks for your help.
>Tom.
>
>
Here is a hint that may help. Assume you place a voltage source across a 
diagonal. Then remember that points that have zero potential 
between them may be connected (i.e. shorted together).

Good luck.............Dave

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