For the common-emitter amplifier shown in Fig. P7.125, let VCC = 15 V, R1 = 27 k, R2 =

Chapter 7, Problem 7.125

(choose chapter or problem)

For the common-emitter amplifier shown in Fig. P7.125, let VCC = 15 V, R1 = 27 k, R2 = 15 k, RE = 2.4 k, and RC = 3.9 k. The transistor has =100. Calculate the dc bias current IC. If the amplifier operates between a source for which Rsig = 2 k and a load of 2 k, replace the transistor with its hybrid- model, and find the values of Rin, and the overall voltage gain vo/vsig. D 7.1

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