In Reply to: I think was most striking is that the normal house ground gives no zero reference. nt posted by Norm on April 16, 2007 at 16:42:39:
It is always relative to something else.It is convenient to call the mass of the Earth "ground" and use it as the "zero reference point" but it has no meaning other than that.
Maybe the moon is at 10,000,000 volts relative to the earth. No consequence unless you plan to wire them together!
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Follow Ups
- There are no such thing as absolute potentials - clifff 10:10:13 04/17/07 (0)