Again consider the circuit shown in Figure 10.37(a). Let (V^{+}=5 mathrm{~V}) and (R_{1}=35 mathrm{k} Omega). Let (V_{E

Question:

Again consider the circuit shown in Figure 10.37(a). Let $V^{+}=5 \mathrm{~V}$ and $R_{1}=35 \mathrm{k} \Omega$. Let $V_{E B 1}$ (on) $=0.6 \mathrm{~V}$. Neglect dc base currents. The baseemitter area of $Q_{2}$ is twice that of $Q_{1}$. The Early voltages are $V_{A N}=120 \mathrm{~V}$ and $V_{A P}=80 \mathrm{~V}$. Determine the small-signal voltage gain for

(a) $R_{L}=\infty$ and

(b) $R_{L}=250 \mathrm{k} \Omega$.

Figure 10.37(a):-

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