RE: [SI-LIST] : Simple question about propagation speed vs. diele ctric

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From: Chris Padilla (cpad@cisco.com)
Date: Sun Feb 18 2001 - 02:08:57 PST


I am not sure I understand the difference between EM wave propogation and
electrical signals propagation velocity. Isn't EM waves and electrical
signals the exact same thing?

Of course whether or not it is a wave largely depends on the
frequency/wavelength one considers or "cares about".

I guess I don't follow your distinction. It is interesting so I wonder if
you could clarify.

Thanks----->Chris

>Last but not least, remember the basic difference between EM wave
>propagation and electrical signals propagation speed: EM waves depend on
>the Er of the medium through which they are travelling, electrical signals
>depend on the Er of the surrounding dielectric.
>
>Hope this helps... :)
>
>Offer Kaye
>sofferk@techst02.technion.ac.il

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