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(Solved): Unless otherwise specified, use \( \beta_{F}=100, V_{A}=70 \mathrm{~V}, K_{p}=K_{n}=1 \mathrm{~mA} ...



Unless otherwise specified, use \( \beta_{F}=100, V_{A}=70 \mathrm{~V}, K_{p}=K_{n}=1 \mathrm{~mA} / \mathrm{V}^{2}, V_{T N}=

Unless otherwise specified, use \( \beta_{F}=100, V_{A}=70 \mathrm{~V}, K_{p}=K_{n}=1 \mathrm{~mA} / \mathrm{V}^{2}, V_{T N}=-V_{T P}=1 \mathrm{~V} \), and \( \lambda=0.02 \mathrm{~V}^{-1} \) 18. (a) Draw the low-frequency and midband equivalent circuits for the common-emitter amplifier in ? Fig. P9.18 if \( R_{l}=2 \mathrm{k} \Omega \). \( R_{1}=110 \mathrm{k} \Omega, R_{2}=330 \mathrm{k} \Omega, R_{E}=13 \mathrm{k} \Omega, R_{C}=43 \mathrm{k} \Omega \), and \( R_{3}=43 \mathrm{k} \Omega \). (b) What are the lower-cutoff frequency and midband gain of the amplifier assuming a Q-point of \( (0.164 \mathrm{~mA}, 2.79 \mathrm{~V}) \) and \( \beta_{o}=100 \) ? (c) What is the value of \( V_{C C} \) ? Figure P9.18


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