The minimum value of the base current I3 required to saturate the transistor shown in figure is given by (a) 0.2 mA (b) 10 mAA (c) 1.2 mA (d) 0.12 mA Q70. 12V PDc500 L'CELsar=0V 1.2k R m VIN 7TT7
ans is 0.2mA ,this is minimum saturation current because if we increase base current ,it increases ic further ,which decreases Vc as Vc=Vcc-Ic*Rc and hence leading to more saturati...