[TCML] Capacitor Conundrum
dave at davidspeckmd.org
Fri Aug 22 22:11:40 MDT 2008
I've seen the dissected capacitor demonstrated very impressively at Ed
Wingate's Teslathon. His uses flat metal plates, and a thin sheet of
mylar as the dielectric.
You can pick up the mylar sheet, and if you run your fingers along the
sides, you can feel a static charge. Because the sheet is an insulator,
it would be unlikely that you would totally discharge it by touching a
small portion of it.
> If the charge is stored on the surface of the dielectric, then why does
> freely handling it not discharge it? Or is the experimenter assumed to be of
> low capacitance and well-isolated?
> Might dielectric relaxation play a part in this as well?
> -Phil LaBudde
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