Q4 An amplifier circuit is shown in following figure in which Vo =18V, VB =4V, R. = 4.5kQ, Re = 1.8kQ. The transistor characteristics:- (18% ) DC current gain Ahe is 15 Forward bias voltage drop Vg is 0.75V Collector-emitter saturation voltage VCIsan is 0.2V Ic RC RB Vec W VCE Ves (a) Name the type of transistor being used and its connection type. (b) Calculate the base current IF- (c) Calculate the collector current Ic- (d) Calculate the voltage drop across the collector and emitter terminals V. (e) Calculate the power dissipated of the transistor related to Ic. (f) Calculate the power dissipated of the transistor related to I;- (g) If Vis decreased to 10V, find the new collector current assuming Ape does not change accordingly. (h) Calculate the total power dissipated in the transistor alone in part (g)