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An amplifier circuit model (below) and cascade connection of two amplifiers are both shown in the figure. What is the voltage gain of this

An amplifier circuit model (below) and cascade connection of two amplifiers are both shown in the figure. What is the voltage gain of this amplifier system (v/v)? Amplifier 1 parameters: R; (input impedance) = 1M Q2, R.(output impedance)-5000, Avo (gain without load)=449 Amplifier 2 parameters: Ri (input impedance) = 1.5M (2, R.(output impedance)=500, Avo (gain without load)=768 O + V Amplifier 9 + 51 www R AU Amplifier Model Amplifier 2 Ra + Vo O + Vo

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