Virtual Labs

Tools

Aim

Theory

Objective

Procedure

Pretest

Demo

Practice

Posttest

Assignment

Contributors

Feedback

Aim

Theory

Objective

Procedure

Pretest

Demo

Practice

Posttest

Assignment

Contributors

Feedback

Comparator

Choose difficulty:

Beginner

Intermediate

Advanced

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

a: ramp voltage Explanation

Explanation

b: sine wave Explanation

Explanation

c: rectangular wave Explanation

Explanation

d: saw tooth wave Explanation

Explanation

2. A comparator circuit can be used to:

a: Mark the instant when an arbitrary waveform attains some reference level Explanation

Explanation

b: Mark the instant when the input voltage becomes constant Explanation

Explanation

c: Switch ON and OFF a circuit alternately at a particular rate Explanation

Explanation

d: Switch OFF a circuit when output becomes zero Explanation

Explanation

3. Number of outputs in the comparator circuit is:

a: 1 Explanation

Explanation

b: 2 Explanation

Explanation

c: 3 Explanation

Explanation

d: 4 Explanation

Explanation

4. Which of the following gates is not used in a 2 bit comparator circuit:

a: NAND Explanation

Explanation

b: AND Explanation

Explanation

c: XNOR Explanation

Explanation

d: OR Explanation

Explanation

5. If two out of the three outputs are known, the third can be inferred as:

a: Always true Explanation

Explanation

b: Sometimes true Explanation

Explanation

c: Always False Explanation

Explanation

d: Can't say Explanation

Explanation

Community Links Sakshat Portal Outreach Portal FAQ: Virtual Labs

AGPL 3.0 & Creative Commons (CC BY-NC-SA 4.0)