Question

Reverse saturation current of a common emitter transistor is __________

(a) Collector current when emitter is open circuited and base-collector junction is reverse biased

(b) Emitter current when collector is open circuited and base-collector junction is reverse biased

(c) Base current when emitter circuit is open circuited and emitter-collector junction is reverse biased

(d) Collector current when base circuit is open circuited

I have been asked this question by my college director while I was bunking the class.

I would like to ask this question from Operating Point of Transistor topic in chapter Transistor Biasing and Low Frequencies of Analog Circuits

Answer 1

Correct answer is (a) Collector current when emitter is open circuited and base-collector junction is reverse biased

The best I can explain: Reverse saturation current is the collector current when emitter is open circuited and base-collector junction is reverse bias mode. In this mode of operation collector-base junction act as a reverse biased diode. The current in this reverse biased junction is known as reverse saturation current.