(a) Design a common-emitter amplifier using a 2N2222A transistor biased at \(I_{C Q}=1 \mathrm{~mA}\) and \(V_{C E Q}=10 \mathrm{~V}\). The available power supplies are \(\pm 15 \mathrm{~V}\), the load resistance is \(R_{L}=20 \mathrm{k} \Omega\), the source resistance is \(R_{S}=0.5 \mathrm{k} \Omega\), the input and output are ac coupled to the amplifier, and the lower \(3 \mathrm{~dB}\) frequency is to be less than \(10 \mathrm{~Hz}\). Design the circuit to maximize the midband gain. What is the upper \(3 \mathrm{~dB}\) frequency?

(b) Repeat the design for \(I_{C Q}=\) \(50 \mu \mathrm{A}\). Assume \(f_{T}\) is the same as the case when \(I_{C Q}=1 \mathrm{~mA}\). Compare the midband gain and bandwidth of the two designs.