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This is an op-amp circuit problem. Let's analyze the circuit based on the given components.

### Given Information:
- \( V_s = 8 \, \text{V} \)
- There's a 1V DC source at the non-inverting input (+) of the op-amp.
- The feedback resistor is 2 kΩ connected between the output and the inverting input (-).
- We are asked to find the output voltage \( V_o \).

### Assumptions:
- Since there is a direct connection from the output to the inverting input through the resistor, this is a **negative feedback** configuration.
- In an ideal op-amp with negative feedback, the voltage at the inverting input (-) is forced to equal the voltage at the non-inverting input (+). So, \( V_{-} = V_{+} = 1 \, \text{V} \).

### Steps to Solve:
1. **Non-inverting input voltage**: The voltage at the non-inverting input is given as 1 V.
2. **Inverting input voltage**: Since this is a negative feedback op-amp, the inverting input voltage will also be 1 V.
3. **Voltage across the 2 kΩ resistor**: The voltage across the resistor is the difference between the output voltage \( V_o \) and the voltage at the inverting input (1 V). Therefore:
   \[
   V_o - 1 \, \text{V} = I \cdot 2 \, \text{k}\Omega
   \]
   where \( I \) is the current through the resistor.
   
4. **Current through the 2 kΩ resistor**: The current \( I \) can be calculated from the source \( V_s = 8 \, \text{V} \) and the voltage at the inverting input (1 V):
   \[
   I = \frac{V_s - 1 \, \text{V}}{R} = \frac{8 \, \text{V} - 1 \, \text{V}}{2 \, \text{k}\Omega} = \frac{7}{2000} \, \text{A} = 3.5 \, \text{mA}
   \]

5. **Output voltage**: Now, applying Ohm’s Law across the resistor, the voltage difference between the output and inverting input must be:
   \[
   V_o - 1 = (3.5 \, \text{mA}) \times (2 \, \text{k}\Omega) = 7 \, \text{V}
   \]
   So,
   \[
   V_o = 7 \, \text{V} + 1 \, \text{V} = 8 \, \text{V}
   \]

### Final Answer:
The output voltage \( V_o \) is **8 V**.

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Do you have any questions or would you like more details? Here are 5 related questions that could extend your understanding:

1. What is the role of negative feedback in an op-amp?
2. How would the output change if the feedback resistor value increased?
3. What would happen if the non-inverting input voltage changed to 2 V?
4. How would you calculate the output if the resistor was replaced with a 1 kΩ resistor?
5. What is the difference between inverting and non-inverting op-amp configurations?

**Tip:** Always check the feedback loop in an op-amp circuit, as it dictates the behavior of the amplifier!

Find the output voltage of the op-amp circuit given below, where Vs = 8 V.

Learn how to find the output voltage of an op-amp circuit with a Vs = 8V supply, using key principles of negative feedback and Ohm's law. Detailed analysis provided with step-by-step calculations for students in Grades 11-12 or early college.

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