home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.electronics
- Path: sparky!uunet!news.mentorg.com!mentorg.com!philip
- From: philip@mentorg.com (Philip Peake)
- Subject: Re: 12 V -> 3V, 0.6 A
- Sender: news@news.mentorg.com (News User)
- Message-ID: <1992Nov09.183228.22386@news.mentorg.com>
- Date: Mon, 09 Nov 1992 18:32:28 GMT
- References: <sehari.721280522@class1.iastate.edu> <1992Nov9.114833.26094@bernina.ethz.ch> <sehari.721325974@class1.iastate.edu>
- Nntp-Posting-Host: sun_shine.mentorg.com
- Organization: Mentor Graphics
- Keywords:
- Followup-To:
- Lines: 15
-
- In article <sehari.721325974@class1.iastate.edu>, sehari@iastate.edu (Babak Sehari) writes:
- |> In <1992Nov9.114833.26094@bernina.ethz.ch> schaerer@isi.ethz.ch (Thomas Schaerer) writes:
- |>
- |> I guess you could use gold wire to wire up your car, too! -:) Even though,
- |> it has less resistance than regular wire; the costs does not justify the
- |> savings in this case.
-
- Resistivity of gold is *higher* than that of copper.
- The only reason that gold is ever used is that it doesn't oxidise.
- It is usually only applied as a thin coating (plated).
-
- If you want lowest power loss, use silver (or cool the whole thing
- down a bit, and use superconducting ceramics :-).
-
- Philip
-