Solved question paper for DE Dec-2020 (B-TECH 3rd)

Solved Question Paper

Digital Electronics Dec-2020

PTU • B-TECH • Information Technology • 3rd • Dec-2020

Digital Electronics previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program in the Information Technology stream, 3rd semester. This section makes it easier to browse subject-wise old question papers for Digital Electronics, so students can review how questions on topics such as number systems, logic gates, and combinational and sequential circuits are typically framed in past exams. Many students search for digital electronics with answers pdf while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.

Solved Questions

Solved
  1. State flip flop and its function
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  2. Draw the full adder circuit using half adder.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  3. Write the function of magnitude comparators.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  4. Draw the NOR gate latch write its truth table.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  5. What are the types of programmable logic devices?
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  6. Give the difference between Moore and MElay’s model.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  7. State the De Morgan’s law and write any one application.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  8. Convert the decimal number 39.75 to hexadecimal.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  9. Differentiate between combinational circuit and sequential circuits.
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  10. What will be memory capacity of RAM if it has 10 bit address lines?
    Short Answer 2 Marks Dec-2020 • PTU B-TECH
  11. Compare various number system in detail.
    Long Answer 8 Marks Dec-2020 • PTU B-TECH
  12. Illustrate the design procedure with algorithmic state machine with neat flow chart.
    Long Answer 8 Marks Dec-2020 • PTU B-TECH
  13. Discuss the features and functional blocks of FPGA.
    Long Answer 8 Marks Dec-2020 • PTU B-TECH
  14. Simplify the Boolean expression using K map :

    F (A,B,C,D) = Σ(0,3,6,7,9,13,14,15)
    Short Answer 8 Marks Dec-2020 • PTU B-TECH
  15. How an op-Amp will act as differentiator and integrator? Explain.
    Short Answer 8 Marks Dec-2020 • PTU B-TECH
  16. Design AND-OR logic for the expression (A + B)(C + D)(E + F). Also convert the same circuit in NOR logic gate circuit.
    Long Answer 8 Marks Dec-2020 • PTU B-TECH
  17. a) What are the different logic gates? Give their truth tables.

    b) Describe the classification of semiconductor memories.
    Long Answer 8 Marks Dec-2020 • PTU B-TECH
  18. What is JK flip flop? Discuss its working. What is race around condition?
    Long Answer 8 Marks Dec-2020 • PTU B-TECH

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FAQ

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Answers about this subject, solved papers, and preparation.

Updated regularly
01 Where can I find Digital Electronics previous year question papers for Bachelor of Technology Information Technology, 3rd semester?

This page lists Digital Electronics question papers uploaded for Punjab Technical University Bachelor of Technology Information Technology, 3rd semester, organized for subject-wise browsing where available.

02 Are these official Punjab Technical University question papers?

BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.

03 How can previous year Digital Electronics papers help in exam preparation?

Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.

04 What kind of topics does Digital Electronics usually cover?

The question papers here relate to the Digital Electronics syllabus set by the university for this course and semester, which typically includes topics such as number systems, logic gates, and combinational and sequential circuits.

05 Does this page include a Digital Electronics with answers pdf or solved answers?

This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.

06 Can I find papers for other subjects in the same Bachelor of Technology Information Technology?

Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology Information Technology.