Basic Op-Amp Circuits Objective Questions and Answers

1. The center frequency of a band-pass filter is always equal to the

2. A zero-level detector is a

A. comparator with a sine-wave output

B. comparator with a trip point referenced to zero

C. peak detector

D. limiter

Discussion

3. A digital-to-analog converter is an application of the

A. scaling adder

B. voltage-to-current converter

C. noninverting amplifier

D. noninverting amplifier

Discussion

4. If the value of resistor Rf in an averaging amplifier circuit is equal to the value of one input resistor divided by the number of inputs, the output will be equal to

A. the average of the individual inputs

B. the inverted sum of the individual inputs

C. the sum of the individual inputs

D. the inverted average of the individual inputs

Discussion

5. If the input to a comparator is a sine wave, the output is a

6. A basic series regulator has

A. an error detector

B. a load

C. a reference voltage

D. both an error detector and a reference voltage

Discussion

7. A comparator is an example of a(n)

Basic Op-Amp Circuits MCQs