Learning Path
Question & Answer
Choose the Best Answer
An op-amp can be used to amplify both AC and DC signals.
The output of an op-amp is always equal to the sum of its input voltages.
Op-amps can function without feedback, but their output may saturate.
The gain of an op-amp is ideally infinite under open-loop conditions.
An op-amp cannot amplify signals that are below a certain threshold.
Understanding the Answer
Let's break down why this is correct
An op‑amp can amplify any voltage that is within its range, so both AC and DC work. Other options are incorrect because Many think the output is simply the sum of inputs; Some assume there is a minimum signal size needed.
Key Concepts
Operational Amplifiers Basics
hard level question
understand
Deep Dive: Operational Amplifiers Basics
Master the fundamentals
Definition
Operational amplifiers (op-amps) are devices that amplify the difference between their two inputs by a large gain factor. They have five terminals, including power supply terminals, inverting and non-inverting inputs, and an output terminal.
Topic Definition
Operational amplifiers (op-amps) are devices that amplify the difference between their two inputs by a large gain factor. They have five terminals, including power supply terminals, inverting and non-inverting inputs, and an output terminal.
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.