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Article #2836Re: Ohm's law for AC?
From: Mike Berger
Date: Mon, 13 Apr 1992 21:18
Date: Mon, 13 Apr 1992 21:18
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"Raymond C. Chick" <rc4n+@andrew.cmu.edu> writes: >I record classical music and have recently begun to investigate the >affects of cable resistance on mic. level audio signals. I used two >cables, one about 20' and the other about 350'. I passed identical >signals through each cable and measured the outputs levels for various >frequencies. I found no difference in output level between the two >cables for frequencies from 100Hz. to 16Khz. Yet, the restistance of the >short cable was .5 ohms and the long cable was 5.5 ohms. >Shouldn't the long cable attenuate the signal or even roll of the high >frequencies? *---- That's what I would have expected. Which leads to the next question: How did you measure the signal strength and frequency response? -- Mike Berger Department of Statistics, University of Illinois AT&TNET 217-244-6067 Internet berger@atropa.stat.uiuc.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!linac!mp.cs.niu.edu!ux1.cso.uiuc.edu!atropa!berger From: berger@atropa (Mike Berger) Newsgroups: sci.electronics Subject: Re: Ohm's law for AC? Message-ID: <1992Apr13.211819.24043@ux1.cso.uiuc.edu> Date: 13 Apr 92 21:18:19 GMT Article-I.D.: ux1.1992Apr13.211819.24043 References: <oduNdSC00UhB81Orc1@andrew.cmu.edu> Sender: usenet@ux1.cso.uiuc.edu (News) Organization: University of Illinois at Urbana Lines: 19