Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Op-amps typically contain multiple transistors to achieve amplification.
B
The gain of an op-amp is always fixed and cannot be modified.
C
Op-amps can perform both inverting and non-inverting amplification based on input configuration.
D
Feedback can be used in op-amp circuits to stabilize the gain.
E
Op-amps are exclusively used for analog signal processing and cannot handle digital signals.
Understanding the Answer
Let's break down why this is correct
Answer
Operational amplifiers are built from a few core parts that work together. First, a differential input stage compares two input voltages and produces a large voltage difference that is amplified by a gain stage; this gives the op‑amp its huge open‑loop gain. Next, the output stage drives the external load, often using a push‑pull transistor pair to provide current to the circuit. Biasing networks keep the internal transistors in their active region so the device can respond linearly. For example, in a non‑inverting amplifier the op‑amp’s internal differential amplifier produces a large voltage that the output stage then supplies to the load, while the feedback resistor controls the overall gain.
Detailed Explanation
An op‑amp uses a chain of transistors to boost a tiny voltage into a larger one. Other options are incorrect because Some think the gain of an op‑amp is a hard number set inside the device; A common misconception is that an op‑amp can only do one kind of amplification.
Key Concepts
Internal components of op-amps
Operational characteristics of op-amps
Signal processing applications
Topic
Internal Components of Op-Amps
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1Which internal component of an operational amplifier (op-amp) is primarily responsible for increasing the input signal's amplitude before it reaches the output stage?
mediumEngineering
Practice
2
Question 2Which of the following statements about operational amplifiers are true? Select all that apply.
hardEngineering
Practice
3
Question 3Which statement best describes the function of an operational amplifier?
mediumEngineering
Practice
4
Question 4Which of the following statements about operational amplifiers (op-amps) and their gain are true? (Select all that apply)
easyEngineering
Practice
5
Question 5Which of the following statements about operational amplifiers are true? Select all that apply.
hardEngineering
Practice
6
Question 6Which statement best describes the function of an operational amplifier?
mediumEngineering
Practice
7
Question 7Which of the following statements about operational amplifiers are true? Select all that apply.
hardEngineering
Practice
8
Question 8Which statement best describes the function of an operational amplifier?
mediumEngineering
Practice
9
Question 9Which of the following statements about operational amplifiers (op-amps) and their gain are true? (Select all that apply)
easyEngineering
Practice
Ready to Master More Topics?
Join thousands of students using Seekh's interactive learning platform to excel in their studies with personalized practice and detailed explanations.