題組內容
2. A difference-amplifier circuit in Fig. 2 has \(R_1= R_3=2 \text{ k}\Omega\) and \(R_2= R_4=200 \text{ k}\Omega\).
(b) Find the value of the differential input resistance \(R_{id}\) and the output resistance \(R_o\).
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2. A difference-amplifier circuit in Fig. 2 has \(R_1= R_3=2 \text{ k}\Omega\) and \(R_2= R_4=200 \text{ k}\Omega\).
(b) Find the value of the differential input resistance \(R_{id}\) and the output resistance \(R_o\).