In article m, David Nebenzahl wrote:
On 8/30/2009 1:58 PM Doug Miller spake thus:

In article
,
JIMMIE wrote:

It does not affect the current that the wire COULD carry or the
AMPacity. A long cable, compared to a short cable, will the current
in the total circuit because it adds resistance to the total
circuit.

Adding resistance to a circuit changes voltage, not current.

Changes current, too. E.g., a current-limiting resistor in series with a
LED, sized so that the LED won't draw excess current and burn itself out.

Wrong.

If you want to limit the current passing through an LED, you put a resistor in
*parallel* with it, not series.

Total current in the circuit remains the same.