On Jun 5, 2012, at 1:54 PM, V G wrote:

> Capacitors:
>=20
> 1. How does a capacitor in series work to block a DC signal, but pass a
> high frequency signal?

A capacitor is an OPEN circuit at DC.   That means NO DC current flow.
(As you say, "two (insulated) parallel plates.)
A capacitor is an AC resistance dependent on frequency.  So it can pass AC =
current.

> 2. If you apply a voltage to a capacitor in series (keeping in mind that =
it
> takes time for the voltage from the power source to rise), I understand
> that the current before the capacitor is NON-zero. But what about the
> current AFTER (on the other side) of the capacitor? Is it zero or non-zer=
o
> (considering that a capacitor is just two parallel plates)?
>=20

  *
  |  __O    Thomas C. Sefranek  wa1rhp@comcast.net
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--=20
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