what are the different ones?
In an electronic device, the differential resistance formula_14, the static resistance formula_15, or both, can be negative, so there are three categories.
Negative resistance
In an electronic device, the differential resistance formula_14, the static resistance formula_15, or both, can be negative, so there are three categories of devices "(fig. 2–4 above, and table)" which could be called "negative resistances".
concept of negative resistance in context with scr UNANSWERABLE what is this resistance? In electronics, “Negative Resistance” is a property of some electrical circuits and devices in which an increase in voltage across the device's terminals results in a decrease in electric current through it.
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Negative resistance [SEP] Types and terminology
In an electronic device, the differential resistance formula_14, the static resistance formula_15, or both, can be negative, so there are three categories of devices "(fig. 2–4 above, and table)" which could be called "negative resistances". The term "negative resistance" almost always means negative "differential" resistance Negative differential resistance devices have unique capabilities: they can act as "one-port amplifiers", increasing the power of a time-varying signal applied to their port (terminals), or excite oscillations in a tuned circuit to make an oscillator. They can also have hysteresis. It is not possible for a device to have negative differential resistance without a power source, and these devices can be divided into two categories depending on whether they get their power from an internal source or from their port: