Invisible wrote:
> scott wrote:
>>> I have no idea what internal resistance is.
>>
>> A pretty accurate model of a battery is a perfect voltage source in
>> series with an "internal" resistor.  This then nicely explains how the
>> more current you try to draw the lower the apparent voltage will be at
>> the terminals of the battery.
> 
> As far as I'm aware, resistors affect only current, not potential. But
> hey, I'm sure you know more about this than me...

Try putting 2 resistors in series, connect the power (you'll have eg.
+12V on R1+, R1- on R2+ and R2- on ground) and measure voltages between
R1+/R2-, R1+/R1-, R2+/R2-, you might be surprised

+
|
R1
|
R2
|
-

-Aero

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