In the circuit given below, RI = 1 MΩ, RO = 10 Ω, A = 10^6 and VI = 1μV. Then the output voltage, input impedance and output impedance respectively are _________(a) 1 V, ∞ and 10 Ω(b) 1 V, 0 and 10 Ω(c) 1V, 0 and ∞(d) 10 V, ∞ and 10 ΩI have been asked this question during an internship interview.I need to ask this question from Advanced Problems on Network Theory in section Network Theory and Complex Circuit Diagram of Network Theory

In the circuit given below, RI = 1 MΩ, RO = 10 Ω, A = 10^6 and VI

1.	In the circuit given below, RI = 1 MΩ, RO = 10 Ω, A = 10^6 and VI = 1μV. Then the output voltage, input impedance and output impedance respectively are _________(a) 1 V, ∞ and 10 Ω(b) 1 V, 0 and 10 Ω(c) 1V, 0 and ∞(d) 10 V, ∞ and 10 ΩI have been asked this question during an internship interview.I need to ask this question from Advanced Problems on Network Theory in section Network Theory and Complex Circuit Diagram of Network Theory
Answer» The correct ANSWER is (a) 1 V, ∞ and 10 Ω To explain: VO (OUTPUT voltage) = AVI = 10^6 × 10^-6 = 1 V V1 = Z11 I1 + Z12 I2 V2 = Z21 I1 + Z22 I2 Here, I1 = 0 Z11 = \(\frac{V_1}{I_1} = \frac{V_O}{0}\) = ∞ Z22 = \(\frac{V_2}{I_2} = \frac{AV_I}{I_2}\) Or, Z22 = \(\frac{1}{I_2}\) = RO = 10 Ω.

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