Q.1
14 Marks(a)
Define ideal and practical current sources. Explain source transformation.
Also asked in Winter 2025 Q5a
(b)
Define EMF and potential difference with example.
Gujarat Technological UniversitySummer 2026 examination
GTU 3131103 Network Theory Summer 2026 Question Paper & PDF
B.E. · EC Engineering · Semester 3 · Subject code 3131103
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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7 of 25 questions on this paper were also asked in other years. 3 more are types of question GTU sets again with new data. Each is marked below with the years it appeared.See all 13 repeated 3131103 questions, most asked first
Q.2
14 Marks(b)
A 5V DC source is connected to a series RC circuit with R=2kΩ and C=10μF at t=0. Assume the capacitor was initially charged to 2V (vC(0−)=2V). Calculate the voltage across the capacitor at t=50ms and the current through the resistor at t=0+.
(c)
State and explain maximum power transfer theorem. Also derive the condition for maximum power transfer to the load for DC and AC circuits.
Also asked in Summer 2025 Q3a OR
OR
(c)
State and apply Thevenin’s Theorem to determine equivalent.
Also asked in Winter 2025 Q2c OR, Summer 2025 Q4b
Q.3
14 Marks(a)
Explain initial conditions in inductors/capacitors.
(b)
List advantages of Laplace transformation method over classical method.
(c)
In the network shown in figure, the switch k is changed from position 1 to 2 at t=0. Find values of i, di/dt and d2i/dt2 at t=0+ if R=1000Ω, L=1H, C=0.1μF and V=100V.
Also asked in Winter 2025 Q3c, Winter 2025 Q4c, Summer 2025 Q2c OR, Summer 2025 Q3b OR, Summer 2025 Q4c OR
OR
(a)
What are poles & zeros? Example.
(b)
List property of Laplace Transform.
(c)
The network shown in fig is in steady state with switch k is opened. At t=0, the switch is closed. For the element values given, determine the values of Va(0-) and Va(0+).
Also asked in Winter 2025 Q3c, Winter 2025 Q4c, Summer 2025 Q2c OR, Summer 2025 Q3b OR, Summer 2025 Q4c OR
Q.4
14 Marks(a)
Define z-parameters.
(c)
Calculate Y parameters
OR
(a)
What are ABCD parameters?
(b)
Explain admittance parameters.
(c)
Derive ABCD for cascaded two-port networks.
Q.5
14 Marks(b)
Define fundamental cut-set matrix.
(c)
Test PR function F(s)= 1 / (S+1)
OR
(b)
Define dual network with example.
(c)
Test whether polynomial is Hurwitz :s2+3s+2
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About this paper
Official Gujarat Technological University (GTU) examination paper for Network Theory (Summer 2026, B.E. · EC Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.