question_answer

In the working of a transistor, the emitter-base (EB) junction is forward biased while collector-base (CB) junction is reverse biased. Why?

Answer:

                    Only forward biased emitter-base junction can send the majority charge carriers from emitter to base and only reverse biased collector can collect these majority charge carriers from the base region. If the emitter is reverse biased, no charge carriers will flow towards the collector and hence no current will flow through the transistor.