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From: Donald.Heller@jpl.nasa.gov (Don Heller)
Subject: Re: help with resistances!
Message-ID: <Donald.Heller.150.000BD91C@jpl.nasa.gov>
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Date: Mon, 1 Aug 1994 19:50:48 GMT

In article <66.1147.1262@tabb.com> henry.liu@tabb.com (Henry Liu) writes:
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>Newsgroups: comp.robotics
>Subject: help with resistances!
>From: henry.liu@tabb.com (Henry Liu)

>Hi All,

>I'm looking to make a very large variable resistor (30 cm-35 cm) for 
>a special application and would like some information on wire resistances. 

It would help to know more about your application.  My first thought would be
to use nichrome wire.  Go to any basic electronics text for resistivity as a
function of material and wire diameter.  Check out the Wheatstone bridge.
Visit your library.  Do you need an extremely thin resistance?  You can
wrap the wire around a plastic rod, a la guitar strings for more resistance
per cm.

Don

