Identify correct relationship between the output voltage and two voltage sources at the input of an ideal op-amp circuit ww 2ΚΩ V1s V25 1ΚΩ W M 1ΚΩ 2ΚΩ + a) vo(t) = V₂s(t) — 2v₁s(t) Fig.3 b) v₁(t) = 2(v2s(t) — v₁s(t)) c) vo(t) = 0.5(v₁s(t) — V2s(t)) d) vo(t) = (½v2s(t) — 2v₁s(t)) vo
Identify correct relationship between the output voltage and two voltage sources at the input of an ideal op-amp circuit ww 2ΚΩ V1s V25 1ΚΩ W M 1ΚΩ 2ΚΩ + a) vo(t) = V₂s(t) — 2v₁s(t) Fig.3 b) v₁(t) = 2(v2s(t) — v₁s(t)) c) vo(t) = 0.5(v₁s(t) — V2s(t)) d) vo(t) = (½v2s(t) — 2v₁s(t)) vo
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Transcribed Image Text:**Question 6**
Identify the correct relationship between the output voltage and two voltage sources at the input of an ideal op-amp circuit.
**Circuit Diagram:**
The image depicts an ideal operational amplifier circuit (Fig. 3) with the following components and connections:
- Two input voltages: \( v_{1s} \) and \( v_{2s} \).
- Two 1 kΩ resistors connected to inputs \( v_{1s} \) and \( v_{2s} \).
- A 2 kΩ resistor connected to the inverting input.
- Feedback loop with a 2 kΩ resistor connected from the output \( v_0 \) to the inverting input.
**Options:**
a) \( v_0(t) = v_{2s}(t) - 2v_{1s}(t) \)
b) \( v_0(t) = 2(v_{2s}(t) - v_{1s}(t)) \)
c) \( v_0(t) = 0.5(v_{1s}(t) - v_{2s}(t)) \)
d) \( v_0(t) = \left(\frac{2}{3}v_{2s}(t) - 2v_{1s}(t)\right) \)
- ○ a) a
- ○ b) b
- ○ c) c
- ○ d) d
**Explanation of the Circuit:**
This is a differential amplifier circuit using an operational amplifier with feedback to control the output voltage. This type of circuit amplifies the difference between two input voltages, \( v_{1s} \) and \( v_{2s} \). The resistor values set the gain of the amplifier, influencing the output voltage \( v_0 \) in relation to the input voltages.
Expert Solution

Step 1: Key Assumptions and Virtual Ground Concept
Before diving into calculations, it's important to note the assumptions made for ideal op-amps:
- No current flows into the op-amp input terminals.
- The voltage difference between the inverting (-) and non-inverting (+) inputs is zero.
Given our assumptions for ideal op-amps, the voltage at the inverting (-) terminal is the same as the non-inverting (+) terminal. Thus, the voltage at the inverting terminal is because the non-inverting terminal is grounded through a voltage source.
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