On Sun, 12 Jun 2005 14:00:23 -0800, (Floyd L.
Davidson) wrote:


My point still stands, that if the current is changing, it is by
definition AC, and current not changing is DC. Trying to look
at it as DC is all in one direction and anything else is AC,
doesn't work.

---
Your point is flawed. Alternating Current, by definition, causes
electrons to move in one direction for a time, and then to reverse
direction for a time.

The sinusoidally varying unipolar voltage under consideration _always_
forces electrons to move in one direction only.

Since the voltage varies, the current will also, but the _direction_
in which the electrons are travelling will never change.

That means that the signal is DC. A varying DC, but DC nonetheless.

--
John Fields
Professional Circuit Designer