Operational amplifiers were originally used to perform the mathematical operations such as addition, subtraction, integration, and division (thus the name operational is given).
Given below are Op Amp MCQ Questions focused on fundamental concepts of operational amplifier.
Voltage Gain and BW of Ideal Op Amp MCQ
The ideal op-amp has ____________ voltage gain and _________ bandwidth:
- Zero, Infinite
- Infinite, Zero
- Zero, Zero
- Infinite, Infinite
Correct answer: 4. Infinite, Infinite
The output impedance of ideal op-amp is
The output impedance of ideal op-amp is:
- Zero
- Low
- High
- Infinite
Correct answer: 1. Zero
The zero-level comparator is an application of
The zero-level comparator is an application of:
- Integrator
- Differentiator
- Comparator
- SCR
Correct answer: 3. Comparator
The summing amplifier is an application of
The summing amplifier is an application of:
- Noninverting op-amp
- Inverting op-amp
- Integrator
- Differentiator
Correct answer: 2. Inverting op-amp
In op-amp differentiator the capacitor is
In op-amp differentiator the capacitor is:
- Feedback element
- Input element
- Both of these
- None of these
Correct answer: 2. Input element