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EX-504 (B) · Electromagnetic Theory/Unsolved PYQ Paper

EX-504 (B) Electromagnetic Theory - May 2024 Question Paper

  1. 7 Marks
    aWith a neat sketch Explain about operation of voltage regulator.
  2. 7 Marks
    bDifferentiate between series and shunt type voltage regulators.
  3. 7 Marks
    aDiscuss in detail about the inverting and non inverting modes of OP-AMP.
  4. 7 Marks
    bDraw and explain about switched mode voltage regulator.
  5. 7 Marks
    aDiscuss the operation of single phase full wave rectifier with RE load. Also derives its average output voltage equations.
  6. 7 Marks
    bWrite a short note on switched regulator.
  7. 7 Marks
    aWhat are the various causes of damage to SCR, explain in detail.
  8. 7 Marks
    bWith neat sketch explain the operation of SCR overvoltage protection circuit.
  9. 7 Marks
    aExplain the principle of operation and draw the characteristics of IGBT.
  10. 7 Marks
    bExplain the principle of operation and draw the characteristics of MOSFET.
  11. 7 Marks
    aExplain the block diagram of PLC and how PLC's are used in microprocessor?
  12. 7 Marks
    bExplain the concept of low pass filters with OP-AMP.
  13. 14 Marks
    Explain the working principle of the following: a) Relaxation oscillator b) Window comparator c) Wien bridge oscillator
  14. 7 Marks
    aWhat are the different types of commutation methods ? Explain in detail with neat sketches.
  15. 7 Marks
    bJustify how the loss of power in semiconductor devices.
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