when was it first discovered?
It was first recognized during investigations of electric arcs, which were used for lighting during the 19th century.
Negative resistance
Negative resistance was first recognized during investigations of electric arcs, which were used for lighting during the 19th century.
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. 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.
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Negative resistance [SEP] History
Negative resistance was first recognized during investigations of electric arcs, which were used for lighting during the 19th century. In 1881 Alfred Niaudet had observed that the voltage across arc electrodes decreased temporarily as the arc current increased, but many researchers thought this was a secondary effect due to temperature. The term "negative resistance" was applied by some to this effect, but the term was controversial because it was known that the resistance of a passive device could not be negative. Beginning in 1895 Hertha Ayrton, extending her husband William's research with a series of meticulous experiments measuring the "I–V" curve of arcs, established that the curve had regions of negative slope, igniting controversy.