V₁ R Answer: Consider the network above with V₁ = 9V, V₂ = 11V, and R = 1.2kQ. Treat the op-amp as real, with ß = 2 × 105. R₂ = 3MQ, and R.₁. = 750. a. What is the voltage v. across the input terminals? Answer: + 3R b. What is the current i through the input terminals? Answer: + Vout c. What is the "ideal" output voltage (treating the op-amp as ideal)? Answer: d. What is the difference between the ideal and real output voltage? (Compute Vreal - Videal.) (For (a). enter 8 digits of precision. For the rest, enter 4 digits.)

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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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The diagram illustrates an op-amp circuit with input voltages \( V_1 \) and \( V_2 \), with resistors labeled \( R \) and \( 3R \). It depicts an inverting amplifier configuration. The output voltage \( v_{\text{out}} \) is shown at the op-amp's output terminal.

Conditions provided:
- \( V_1 = 9V \)
- \( V_2 = 11V \)
- \( R = 1.2k\Omega \)

The op-amp is treated as real with the following parameters:
- Open-loop gain (\( \beta \)) = \( 2 \times 10^5 \)
- Input resistance (\( R_x \)) = 3M\(\Omega\)
- Output resistance (\( R_y \)) = 75\(\Omega\)

Questions:
a. What is the voltage \( v_x \) across the input terminals?
- Answer: [__________] (Enter 8 digits of precision)

b. What is the current \( i_x \) through the input terminals?
- Answer: [__________] (Enter 4 digits of precision)

c. What is the "ideal" output voltage (treating the op-amp as ideal)?
- Answer: [__________] (Enter 4 digits of precision)

d. What is the difference between the ideal and real output voltage? (Compute \( v_{\text{real}} - v_{\text{ideal}} \))
- Answer: [__________] (Enter 4 digits of precision)
Transcribed Image Text:The diagram illustrates an op-amp circuit with input voltages \( V_1 \) and \( V_2 \), with resistors labeled \( R \) and \( 3R \). It depicts an inverting amplifier configuration. The output voltage \( v_{\text{out}} \) is shown at the op-amp's output terminal. Conditions provided: - \( V_1 = 9V \) - \( V_2 = 11V \) - \( R = 1.2k\Omega \) The op-amp is treated as real with the following parameters: - Open-loop gain (\( \beta \)) = \( 2 \times 10^5 \) - Input resistance (\( R_x \)) = 3M\(\Omega\) - Output resistance (\( R_y \)) = 75\(\Omega\) Questions: a. What is the voltage \( v_x \) across the input terminals? - Answer: [__________] (Enter 8 digits of precision) b. What is the current \( i_x \) through the input terminals? - Answer: [__________] (Enter 4 digits of precision) c. What is the "ideal" output voltage (treating the op-amp as ideal)? - Answer: [__________] (Enter 4 digits of precision) d. What is the difference between the ideal and real output voltage? (Compute \( v_{\text{real}} - v_{\text{ideal}} \)) - Answer: [__________] (Enter 4 digits of precision)
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