Q1. (a) Using the hybrid-pi model with early voltage effect, compute the small signal voltage gain, Av, input resistance and output resistance for the CE BJT amplifier shown below. (25 marks) Vcc = 12 V B=100 VREIGN=0.7V V = 100V R, = 93.7k Rc=6k2 R = 0.5 k C, V B E V R, = 6.3 k Figure Q1(a) (b) The MOSFET in Figure Q1(b) has VGS(th) = 4 V, Idion) = 4 mA and VGS(on)= 6 V. Given the following: RG = 1 M 2 RD = 1.5 k92 Rs = 470 22 VDD = +20 V Analyze the circuit to find the values of ID, Vas, V and Vs. State any assumption made. (25 marks) VDD Rp ID RG RS Figure Q1(b)