Engineering Online MCQ Number 0889 – online study, assignment and exam

Multiple choice question for engineering Set 1 1. The current gain of BJT is_________ a) gmro b) gm/ro c) gmri d) gm/ri AnswerAnswer: c [Reason:] We know, current gain AV=hfe. In π model, hfe is referred to β. We know, ri= β/gm. From this, β=rigm. 2. For the amplifier circuit of fig. The transistor has…


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