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EndsemMay 20252019 patternSE Electrical

Network Analysis SPPU Endsem Question Paper May 2025

All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.

Subject code
203147
Pattern
2019 pattern
Exam
Endsem
Session
May 2025
Max. marks
70
Time
2½ Hours
Semester
IV
Paper code
[6402]-18

Printed for: S.E. (Electrical Engineering)

Instructions to the candidates

  1. Answer Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6, and Q.7 or Q.8.
  2. Neat diagrams must be drawn wherever necessary.
  3. Figures to the right indicate full marks.
  4. Use of calculator is allowed.
  5. Assume suitable data if necessary.

Questions

  1. Q1

    1. a)

      What is time constant? Explain time constant in case of series R-L and series R-C circuit.

      Also asked:Nov 2025 ·Nov 2024 ·May 2024 ·May 2023

      [7]
    2. b)

      Explain the behaviour of R, L and C elements for transients. Mention the representation at the instant of switching.

      [5]
    3. c)

      Obtain the expression for voltage across capacitor in series RL circuit connected to a d. c. voltage V for t > 0. Assume initial charge across capacitor is zero.

      Also asked:Nov 2025 ·Nov 2023 ·May 2023

      [5]
  2. Q2

    1. a)

      This part has equations that don’t show as text. Open the PDF to read it.

      [7]
    2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [10]
  3. Q3

    1. a)

      Find the Laplace Transform of a ramp function.

      [6]
    2. b)

      State and explain the convolution theorem of Laplace Transform.

      [6]
    3. c)

      State ant six properties of Laplace Transform. 2

      Also asked:Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

      [6]
  4. Q4

    1. a)

      Derive the relation between unit step function and unit Impulse function.

      [6]
    2. b)

      Find the Laplace transform of e -at sin  t.

      Also asked:Nov 2025 ·May 2024

      [6]
    3. c)

      Obtain F(s) for the signal shown in fig. no. 2. Also determine its Laplace transform.

      [6]
  5. Q5

    1. a)

      Express impedance parameters in terms of transmission line parameters.

      [9]
    2. b)

      Find Z parameters of the network shown in figure no. 3.

      [8]
  6. Q6

    1. a)

      Define the following terms in relation with filter and give significance of each. i) Pass band ii) Stop band iii) Cutoff frequency

      [9]
    2. b)

      What is high pass filter? Derive the expression for the cutoff frequency of prototype low pass filter in terms of L and C.

      Also asked:Nov 2025 ·May 2024 ·May 2023

      [8]
  7. Q7

    1. a)

      Explain the necessary conditions for transfer function.

      Also asked:Nov 2025

      [9]
    2. b)

      Determine the driving point impedance voltage ratio transfer function for the network shown in fig. No. 4. 3

      [9]
  8. Q8

    1. a)

      What is pole-zero plot? Explain with suitable example.

      [9]
    2. b)

      Obtain the pole zero plot of transform impedance for the network shown in fig. no.5. 

      [9]