What is meant by negative resistance region of UJT?
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It exhibits a negative resistance characteristic and so it can be employed as an oscillator. The UJT is biased with a positive voltage between the two bases. This causes a potential drop along the length of the device. ... Overall, the effect is a negative resistance at the emitter terminal.
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The negative resistance region of the UJT method its emitter contemporary rises regeneratively while triggered.
Causes for bad resistance:
- In electronics, bad resistance is belonging to a few electrical circuits and devices wherein growth in voltage throughout the tool's terminals consequences in a lower in electric powered contemporary via it.
- With the growth in emitter contemporary, the emitter voltage decreases. Due to this, UJT possesses bad resistance.
Thus an emitter supply is needed with the motive of restricting it. In regular operating conditions, it commonly absorbs much less energy and consequently is a good tool its emitter current rises regeneratively while triggered.
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