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From: eklhad@ihnet.UUCP (K. A. Dahlke)
Newsgroups: net.analog
Subject: Resistance Cubes
Message-ID: <314@ihnet.UUCP>
Date: Sat, 12-Oct-85 08:44:55 EDT
Article-I.D.: ihnet.314
Posted: Sat Oct 12 08:44:55 1985
Date-Received: Tue, 15-Oct-85 06:28:35 EDT
References: <488@nsc-pdc.UUCP> <102500005@hp-pcd.UUCP>
Organization: AT&T Bell Laboratories
Lines: 18

> If this is quiz time then my all time favorite is:
> 
>   Take 12 one ohm resistors and wire them so that they form a 3-D cube with
> each resistor on an edge of the cube. What is the total resistance across 
> the long diagonal?

there is an interesting generalization.
This question reflects my net.math tendencies,
but it *is* an electrical engineering problem,
so I will post it here.
What is the resistance across the long diagonal of
a hypercube of N dimensions.
As before, each edge of the cube has a 1 ohm resistance.
Express your answer as a function of N.
-- 
	When You ferst realise that you're net artical contains spelling and
	grammatically errors, and sentense fragments.
			Karl Dahlke    ihnp4!ihnet!eklhad