b) c) Explain why the coupling capacitors do not have a significant effect on gain at [4 marks] sufficiently high-signal frequencies. List the capacitances that affect high-frequency gain in both BJT and FET [6 marks] amplifiers and comment why it is the case. Determine the Miller input and output capacitances for the amplifier in Figure Q1. Cgd=Crss. [15 marks] 0.001 uF HH 50 +10 V 10 -1.0 1.0 0.001 F out 0.1 F Figure Q1 Ciss = 10 pF Crss=3 pF IGSS= 18 nA @ VDS = -10 V VGS(off) = -8 V IDSS = 10 mA 10