(Solved): QUESTION 2 [ 10+10=20 marks] A) A self-bias circuit is shown in Figure 2A. The transistor is biase ...

QUESTION 2 [ $$10+10=20$$ marks] A) A self-bias circuit is shown in Figure 2A. The transistor is biased for constant base current. If $$?=80,V_{\mathrm{CEQ}}=8\mathrm{V},V_{\mathrm{BEQ}}=0.7\mathrm{V},R_{\mathrm{C}}=3\mathrm{k}?$$, and $$V_{\mathrm{CC}}=15\mathrm{V}$$, find the values of $$I_{\mathrm{CQ}}$$ and $$R_{\mathrm{B}}$$. Figure $$2\mathrm{A}$$ B) Calculate the output voltage, $$v_0$$ for the circuit shown in Figure 2B. Assume, $$R_2=100\mathrm{k}?$$, $$R_1=50\mathrm{k}?,R=10\mathrm{k}?$$, and $$v_{s1}=v_{s2}=2\mathrm{V}$$. [Hints: Use superposition theorem to derive the expression of $$v_0$$ ]. rigure $$?B$$