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Physics - was Re: Mem upgrade for 701C
>OK, I'll try once more and then I give up ;-) .
>
>E = I/R
>
>As you decrease the voltage (resistance constant) the current will also
>decrease a proportionate amount. If it worked the way you suggest
>(decreasing the supply voltage increases current) disconnecting a
>battery (dropping the voltage to zero) would cause infinite current.
>This is silly. Impediance and reactance only enter into it if the
>voltage applied to power the card is ac.
yes, i understand your problem. i don't mean to change this list into a
physics lecture, so unless i have this wrong, let this be the end.
At the risk of being shot ...
Ohm's law (E = I/R) only works for linear resistances.
The argument being put here (I think) is that this DIMM is a non-linear
device which requires a fixed amount of power.
This is a bit like a circuit with a voltage regulator (for all I know, the
DIMM has one) or some types of UPS. If the input voltage drops, the device
will draw more current in order to maintain the output voltage.
I promise to say not another word on this :-)
Mike