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To calculate the output voltage \( V_0 \) of the given op-amp circuit, let’s analyze it step-by-step. The circuit appears to be a difference amplifier, which outputs the amplified difference between the two input voltages, \( V_1 \) and \( V_2 \).

The output voltage \( V_0 \) for a difference amplifier is given by the formula:

\[
V_0 = \left( \frac{R_4}{R_3} \right) V_2 - \left( \frac{R_2}{R_1} \right) V_1
\]

### Given Values:
- \( V_1 = 8 \text{ V} \)
- \( V_2 = 9.3 \text{ V} \)
- \( R_1 = 1325 \ \Omega \)
- \( R_2 = 7425 \ \Omega \)
- \( R_3 = 9209 \ \Omega \)
- \( R_4 = 4630 \ \Omega \)

### Step-by-Step Solution:
1. **Calculate** \( \frac{R_4}{R_3} \):
   \[
   \frac{R_4}{R_3} = \frac{4630}{9209} \approx 0.503
   \]

2. **Calculate** \( \frac{R_2}{R_1} \):
   \[
   \frac{R_2}{R_1} = \frac{7425}{1325} \approx 5.604
   \]

3. **Calculate** each term in the formula:
   - For the \( V_2 \) term: 
     \[
     \left( \frac{R_4}{R_3} \right) V_2 = 0.503 \times 9.3 \approx 4.6779 \text{ V}
     \]
   - For the \( V_1 \) term:
     \[
     \left( \frac{R_2}{R_1} \right) V_1 = 5.604 \times 8 \approx 44.832 \text{ V}
     \]

4. **Calculate** \( V_0 \):
   \[
   V_0 = 4.6779 - 44.832 \approx -40.1541 \text{ V}
   \]

### Result:
\[
V_0 \approx -40.15 \text{ V}
\]

Would you like further details or have any questions about the solution?

### Additional Questions
1. How does changing \( R_3 \) or \( R_4 \) affect the output \( V_0 \)?
2. What happens to \( V_0 \) if \( V_2 \) is decreased to match \( V_1 \)?
3. How can we adjust \( R_1 \) and \( R_2 \) to make \( V_0 \) closer to zero?
4. Can you explain the concept of a difference amplifier and its practical applications?
5. How would the output change if the op-amp were configured as a summing amplifier instead?

### Tip
When analyzing op-amp circuits, always check if it’s inverting, non-inverting, or difference mode—each has a specific output formula.

Calculate the value of V₀ in the following circuit, for the following values of voltage and resistance:

V₁ = 8 Volts
V₂ = 9.3 Volts
R₁ = 1325 Ohms
R₂ = 7425 Ohms
R₃ = 9209 Ohms
R₄ = 4630 Ohms

Calculate the output voltage V₀ in a difference amplifier circuit with given input voltages and resistances. This example covers key circuit analysis concepts, using the difference amplifier formula for an operational amplifier circuit. Suitable for undergraduate electrical engineering students.

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