Network Analysis SPPU Endsem Question Paper Nov 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
- Nov 2025
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- IV
- Paper code
- [6582]-13
Printed for: S.E. (Electrical Engineering)
Instructions to the candidates
- Answer Q1 or Q2, Q3 or Q4, Q5 or Q6, Q7 or Q8.
- Neat diagrams must be drawn wherever necessary.
- Figures to the right indicate full marks
- Use of Calculator is allowed.
- Assume Suitable data if necessary.
Questions
Q1
- a)[7]
A series R-L circuit with initial current I 0 in the inductor is connected to a d.c. voltage V at t = 0. Derive the expression for the instantaneous current through the inductor for t > 0.
- b)[5]
Find current i(t) through inductor using conventional method. The switch is closed at time t = 0. Refer fig. no. 1.
- c)[5]
Obtain the expression for current in series RL circuit connected to a d. c. voltage V for t > 0. Assume initial current through inductor as zero. 2
OR- a)
Q2
- a)[7]
What is time constant? Explain time constant in case of series R-L and series R-C circuit.
- b)[10]
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Q3
ORQ4
- a)[6]
Define and explain the characteristics if i) Unit step function ii) Unit ramp function iii) Unit impulse function
- b)[6]
- c)[6]
Obtain F(s) for the signal shown in fig. no. 3. Also determine its Laplace transform. 3
- a)
Q5
- a)[9]
- b)[8]
Find Y parameters of the network shown in figure no. 4
ORQ6
- a)[9]
What is low pass filter? Derive the expression for the cut-off frequency of prototype low pass filter in terms of L and C.
- b)[8]
This part has equations that don’t show as text. Open the PDF to read it.
- a)
Q7
- a)[9]
Explain the necessary conditions for transfer function.
Also asked:May 2025
- b)[9]
Find the network functions Z11(s) and Z21(s) for the network shown in fig. No.5.
OR- a)
Q8
- a)[9]
Explain the significance of poles and zeros.
- b)[9]
This part has equations that don’t show as text. Open the PDF to read it.
- a)