My lecturer has bn teasing us with this. In what region of operation will a BJT be operating when Vbe=0? i.e the emitter and base are shorted.Thanks 4 ur replies
There are four regions. Forward active when Vbe>0 and Vbc<0, Reverse active when Vbe<0 and Vbc>0, Saturation when Vbe>0 and Vbc>0 and Cutoff when Vbe<0 adn Vbc<0.The above is for NPN. The question is a PNP BJT with Veb=0v and Vcb=-3v. The problem is non of the values Vbe's above a definite value(=0), they either greater than or less than.
The regions are not as clear-cut as you might imagine and you might want to read what it says specifically about operation close to where the be junction goes from forward to reverse bias.
edit: if you look at it in terms of be current, it will also be clearer.