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The base emitter voltage in a saturation region is_________(a) greater than 0.7V(b) equal to 0.7V(c) less than 0.7V(d) cannot be predictedI have been asked this question in an interview for internship.I need to ask this question from Transistor as a Switch in division Transistor Characteristics of Electronic Devices & Circuits

Answer»

Right option is (d) cannot be predicted

Explanation: From the saturation mode characteristics, the transistor acts as a single POLE single throw SOLID state switch. A zero COLLECTOR current flows. With a positive signal APPLIED to the base of transistor it TURNS on like a closed switch.



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