On Mon, 13 Jun 2005 11:20:43 -0700, "Larry Brasfield"
wrote:

"John Fields" wrote in message
...
...
Yes, it is. In order for the current in a load to alternate, the
polarity of the generator's output voltage must alternate as well.


Consider a voltage source with output Eo = 2 + sin(w t)
driving a capacitor as its load. The voltage does not
alternate but the current will.

---
True, but in the context of the post from which the excerpt came
capacitive loads had not yet been introduced into the discussion.

--
John Fields
Professional Circuit Designer