From: Wagner Lipnharski <wagnerl@EARTHLINK.NET>


This is historically known as "the maximum power transfer theorum"

>Remember that the best power transfer happens when the
>external (load) impedance is equal to the internal (cell)
>impedance,

>As you can see, when get the max transfered power when
>both impedances are equal. This is applied to sound,
>video, RF, power, pressure, including mechanics.


But is never applied to mains sockets for appliances etc :-)
(for reasons which will be apparent when you think about it).



Russell McMahon