On 19/06/2011 17:17, V G wrote:
>
>
>> >  remember that
>> >  impedance is dV/dI not V/I - resistance can be either dV/dI or V/I
>> >  depending on whether it is incremental or absolute resistance)
> Could you please explain this? I don't understand this
>
>

Impedance can be complex.

"Perfect" Resistance is purely a straight line through origin with Volts=20
and Current perfectly in phase and is same for DC and AC.



--=20
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