Article View: sci.electronics
Article #15391Re: Transmission line question
From: Babak Sehari
Date: Wed, 16 Dec 1992 11:10
Date: Wed, 16 Dec 1992 11:10
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In <1992Dec15.202004.15878@ucsu.Colorado.EDU> barr@tramp.Colorado.EDU (BARR DOUG) writes:
>Some specs I have call for ethernet coax to be grounded in one location
>and one location only! I am wondering why this is. Antenna effects,
>current loops or something else. Does anyone know why this is the case?
If he distance is large enough, and the two end points are at two different
potentials, you might blow up the whole computer. Remember, the two end
points are not connected with %100 conductive material. The two end point
might be connected by earth or other much less conductive materials. When
you connect them with a conductor, such as the shield, this conductor
wants to create zero potential between these two ends. This requires very
large current passes through the wire, which might damage the computer.
Also, there might be some voltage from change of magnetic flux of the big
loop.
With highest regards,
Babak Sehari.
--
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!ux1.cso.uiuc.edu!news.iastate.edu!class1.iastate.edu!sehari From: sehari@iastate.edu (Babak Sehari) Subject: Re: Transmission line question Message-ID: <sehari.724504235@class1.iastate.edu> Originator: sehari@class1.iastate.edu Sender: news@news.iastate.edu (USENET News System) Organization: Iowa State University of Science and Technology, Ames, Iowa. References: <1992Dec15.202004.15878@ucsu.Colorado.EDU> Date: Wed, 16 Dec 1992 11:10:35 GMT Lines: 19