Share with your friends Share 0 Shobhit Mittal answered this Dear Student, apply kirchoff law in the input loop .the two sources are in parallel vi+VBB so we add them .VBB is for biasing vi is the input signal voltage.vi+VBB=VBEit is the drop from base to emitter due to biasing voltage+IBRBits the drop along thhe resistance RB due to biasing voltage+∆IBRB+rihere this drop is due to input signal .Regards 0 View Full Answer
