Skip to content

Analog and Digital Electronics (ADE) important questionsMost repeated in SPPU papers

These 18 questions appeared in more than one SPPU Analog and Digital Electronics paper we have: 9 papers, from May 2023 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.

All ADE papers and notes

Repeated questions

Endsem questions (17)

  1. 6×asked

    Explain the working of single phase half wave rectifier with RL load with neat sketch and draw its waveform.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

  2. 5×asked

    Draw and explain IC 555 as an Astable multivibrator with neat connection diagram.

    Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

  3. 4×asked

    Explain High pass filter using op-amp with its frequency response.

    May 2025 ·Nov 2024 ·Nov 2023 ·May 2023

  4. 3×asked

    Draw neat diagram. Explain OP-AMP as a Peak detector.

    Nov 2025 ·May 2024 ·May 2023

  5. 3×asked

    With neat pin diagram explain function of each pin of IC 741

    Nov 2024 ·May 2024 ·Nov 2023

  6. 3×asked

    With the help of circuit diagram and relevant waveforms, explain the operation of a 3-phase bridge rectifier with resistive load.

    Nov 2024 ·May 2024 ·Nov 2023

  7. 3×asked

    Explain with neat diagram and output waveforms, Op-Amp as a zero crossing detector.

    May 2024 ·Nov 2023 ·May 2023

  8. 2×asked

    Explain the function of LM 317 as a voltage regulator.

    Nov 2025 ·May 2025

  9. 2×asked

    Explain voltage and current converter for grounded type load. 2

    Nov 2025 ·May 2023

  10. 2×asked

    Explain with neat diagram Schmitt trigger as an application of OP-AMP.

    Nov 2025 ·Nov 2023

  11. 2×asked

    What is the role of OP-AMP as an instrumentation amplifier?

    Nov 2025 ·May 2023

  12. 2×asked

    Define the characteristics of practical OPAMP.

    May 2025 ·Nov 2023

  13. 2×asked

    Explain Programmable Array Logic in detail.

    May 2025 ·Nov 2023

  14. 2×asked

    Explain working of OPAMP as instrumentation amplifier.

    May 2025 ·Nov 2023

  15. 2×asked

    What is semiconductor memory? Enlist advantages of it.

    Nov 2024 ·Nov 2023

  16. 2×asked

    What is voltage regulator? Write any two applications of voltage regulator.

    Nov 2024 ·Nov 2023

  17. 2×asked

    Define following terms. i) Form factor ii) Ripple factor iii) TUF

    May 2024 ·Nov 2023

Insem questions (1)

  1. 2×asked

    Design MOD 04 Asynchronous UP Counter. Also draw timing diagram for the same.

    Oct 2024 ·Oct 2023

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.