2) In the following circuit, find vo(t) Consider: R₁ = 10 2, R₂= 252, Vi R1 R2 C C=0.2 F, vi(t) = 2 cos (5t) volts Vo ANS: Zc= -j 12, Non-Inverting amplifier: Vo = Vi (1 + Z₂/R₁); Vo = 2.1-4.4° volts; vo(t) = 2.1 cos (5 t – 4.4°) volts 22=R2 || Zc

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## Transcription of Circuit Analysis Problem

### Problem Statement
2) In the following circuit, find \( v_o(t) \).

- **Consider:**
  - \( R_1 = 10 \, \Omega \)
  - \( R_2 = 2 \, \Omega \)
  - \( C = 0.2 \, F \)
  - \( v_i(t) = 2 \cos(5t) \) volts

### Diagram Explanation
The diagram is a non-inverting amplifier circuit. It includes:
- A resistor \( R_1 \) connected in series with the positive input of the operational amplifier.
- A parallel combination of a resistor \( R_2 \) and a capacitor \( C \) connected to the negative input.
- \( V_i \) is the input voltage, and \( V_o \) is the output voltage.

### Solution
- **Impedance of the Capacitor:**
  \[
  Z_c = -j \, 1 \, \Omega
  \]

- **Non-Inverting Amplifier Equation:**
  \[
  V_o = V_i \left(1 + \frac{Z_2}{R_1}\right)
  \]

- **Parallel Impedance:**
  \[
  Z_2 = R_2 \parallel Z_c
  \]

- **Output Voltage:**
  \[
  V_o = 2.1 \, \angle \, -4.4^\circ \, \text{volts}
  \]

- **Output Voltage as a Function of Time:**
  \[
  v_o(t) = 2.1 \cos(5t - 4.4^\circ) \, \text{volts}
  \]

This document provides a step-by-step calculation for the output voltage of a non-inverting amplifier circuit, considering given resistances and input signal details.
Transcribed Image Text:## Transcription of Circuit Analysis Problem ### Problem Statement 2) In the following circuit, find \( v_o(t) \). - **Consider:** - \( R_1 = 10 \, \Omega \) - \( R_2 = 2 \, \Omega \) - \( C = 0.2 \, F \) - \( v_i(t) = 2 \cos(5t) \) volts ### Diagram Explanation The diagram is a non-inverting amplifier circuit. It includes: - A resistor \( R_1 \) connected in series with the positive input of the operational amplifier. - A parallel combination of a resistor \( R_2 \) and a capacitor \( C \) connected to the negative input. - \( V_i \) is the input voltage, and \( V_o \) is the output voltage. ### Solution - **Impedance of the Capacitor:** \[ Z_c = -j \, 1 \, \Omega \] - **Non-Inverting Amplifier Equation:** \[ V_o = V_i \left(1 + \frac{Z_2}{R_1}\right) \] - **Parallel Impedance:** \[ Z_2 = R_2 \parallel Z_c \] - **Output Voltage:** \[ V_o = 2.1 \, \angle \, -4.4^\circ \, \text{volts} \] - **Output Voltage as a Function of Time:** \[ v_o(t) = 2.1 \cos(5t - 4.4^\circ) \, \text{volts} \] This document provides a step-by-step calculation for the output voltage of a non-inverting amplifier circuit, considering given resistances and input signal details.
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