Answer Posted / rgopalnaik
Strictly speaking diode is a passive element because if we
consider the V-I characteristics which describes the type of
element are non-linear for the diode.Non-linearity in
characteristics implies the passive element and linear
implies the active element.But if we consider the small part
of the V-I characteristics of diode it seems to be
linear.For that portion only it acts as a linear element
that is what actually we do in electronics.This linear
relationship is preferred for Small signal analysis of the
Electronic components.
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