Electric Circuits and Network — BTEUP Electronics 3rd Semester Syllabus 2026-27

Electric Circuits and Network — What This Subject Is About

To build on A.C. theory with networks, filters and transmission lines — the foundation for line communication, audio and video communication and microwave communication systems.

Subject 3.4 (Practicum) • Total 100 Marks • 3 Credits • L 2 – P 2 • 3rd Semester — Electronics Engineering • Session 2026–27

What You Will Study

Unit 1 — Basic Electrical Circuits & Theorem (6 Periods)

Node and Mesh analysis, Superposition Theorem, Thevenin Theorem, Norton’s Theorem, Maximum Power Transfer Theorem, Reciprocity Theorem.

The standard theorems for analysing circuits: nodal and mesh analysis, and the theorems of Thevenin, Norton, superposition, maximum power transfer and reciprocity.

Unit 2 — Two Port Network (5 Periods)

Two Port Network: Open Circuit Impedance Parameters, Short Circuit Admittance Parameters, Transmission Parameters Hybrid Parameters. Overview of T network, π network, Ladder network; Lattice network

Describing a network by its two-port parameters (Z, Y, transmission and hybrid) and the standard T, π, ladder and lattice shapes.

Unit 3 — Attenuator (6 Periods)

Units of attenuation (Decibels and Nepers): General characteristics of attenuators - Analysis and design of simple attenuator of following types; Symmetrical T and π type, L type.

Circuits that deliberately reduce signal strength by a known amount, measured in decibels and nepers.

Unit 4 — Filter (6 Periods)

Brief idea of the use of filter networks in different communication systems, concept of low pass, high pass, band pass and band stop filters. Active Filters Basic concept of active filters and their comparison with passive filters.

Filters that let some frequencies through and block others — low-pass, high-pass, band-pass and band-stop, passive and active.

Unit 5 — Transmission Line (5 Periods)

Transmission Lines, their types and applications, Distributed constants, T and π representation of transmission line section, Concept of reflection and standing waves, definition of reflection coefficient, SWR &VSWR and their relation (no derivation), Concept of transmission lines at high frequencies.

What happens when a signal travels along a long line: reflections, standing waves and SWR, and why lines behave differently at high frequencies.

Note: no marks-distribution table is given for this subject in the official syllabus, so unit weightages are not shown.

Practical Work

• Verify voltage and current using Node analysis in a DC resistive circuit.
• Verify voltage and current using Mesh analysis in a DC resistive circuit.
• Verification of electrical circuit using Thevenin’s theorem.
• Verification of electrical circuit using Norton’s theorem.
• Verification of electrical circuit using Maximum Power Transfer theorem.
• Use Superposition theorem to determine current/voltage in a linear circuit with multiple sources.

And more — the complete list of 18 practicals is inside the PDF.

Complete Syllabus

The full examination scheme, the complete practicals list and the reference books from the official syllabus. The unit-wise topics are in the "What You Will Study" section above.

Examination Scheme

Complete Practicals List

This is the complete list of practicals from the official syllabus.

• Verify voltage and current using Node analysis in a DC resistive circuit.
• Verify voltage and current using Mesh analysis in a DC resistive circuit.
• Verification of electrical circuit using Thevenin’s theorem.
• Verification of electrical circuit using Norton’s theorem.
• Verification of electrical circuit using Maximum Power Transfer theorem.
• Use Superposition theorem to determine current/voltage in a linear circuit with multiple sources.
• Determine Z-parameters of a two-port network.
• To determine the Y parameters of a Two-port network.
• Determine transmission line parameters A, B, C, and D of a two-port network.
• To determine Hybrid parameters of a two-port network.
• To design and verify a symmetrical T-type attenuator for a given attenuation and characteristic impedance.
• To design and verify a symmetrical π-type attenuator for a specified dB loss and characteristic impedance.
• To study the frequency response of a Low Pass Filter and observe the cut-off frequency.
• To study the frequency response of a High Pass filter and observe the cut-off frequency.
• To study the frequency response of a Band Pass filter and observe the cut-off frequency.
• To study the frequency response of a Band Stop filter and observe the cut-off frequency.
• To construct and test a Band Pass Filter and study its center frequency and bandwidth.
• To observe reflections due to impedance mismatch in transmission lines.

Reference Books

As listed in the syllabus:

• Network Filters and Transmission Lines by AK Chakarvorty; Dhanpat Rai and Co. Publication, New Delhi
• Rahul Wadhwa, Network, Filters & Transmission Lines, Asian Publishers, Muzaffarnagar. ISBN: 978-93-5502-112-0
• Networks and Systems by Ashfaq Husain, Khanna Publishing House
• Network Analysis by Soni and Gupta; Dhanpat Rai and Co. Publication, New Delhi
• Network Filters and Transmission Line by Yash Pal; Ishan Publications, Ambala City
• Electrical and Electronics Measuring instrumentation, A.K Sawhney; Dhanpat Rai and Co. Publication, New Delhi

Frequently Asked Questions

How many marks is Electric Circuits and Network worth in the 3rd semester?
Electric Circuit and Network (3.4) is 100 marks. Total: 100 marks, 3 credits. The full scheme table is in the Complete Syllabus section above.

Which units carry the most weightage in Electric Circuits and Network?
No marks-distribution table is given for this subject in the official syllabus, so unit weightages are not published. The unit-wise topic list and periods are given in the Complete Syllabus section above.

What practical work is there in Electric Circuits and Network?
18 practicals/experiments, including: Verify voltage and current using Node analysis in a DC resistive circuit.; Verify voltage and current using Mesh analysis in a DC resistive circuit.; Verification of electrical circuit using Thevenin’s theorem.. The complete list is in the Complete Syllabus section above.

Which books should I refer to for Electric Circuits and Network?
The syllabus lists Network Filters and Transmission Lines by AK Chakarvorty; Dhanpat Rai and Co. Publication, New Delhi, and Rahul Wadhwa, Network, Filters & Transmission Lines, Asian Publishers, Muzaffarnagar. ISBN: 978-93-5502-112-0, among others. The full list is in the Complete Syllabus section above.

Is Electric Circuits and Network a theory subject or a practical subject?
It is assessed as practicum — see the examination scheme in the Complete Syllabus section above.

How can I download the Electric Circuits and Network syllabus PDF?
The PDF is free to download — use the download link in the Download section below. It is prepared by KAMALDNP Academy from the official BTEUP syllabus.

Related Syllabus Posts

• BTEUP Electronics 3rd Semester Syllabus 2026-27
• BTEUP Electronics Complete Syllabus 2026-27 — 3rd, 4th, 5th & 6th Semester (All Subjects)
• Electronic Devices and Circuits — BTEUP Electronics 3rd Semester Syllabus 2026-27
• Digital Electronics — BTEUP Electronics 3rd Semester Syllabus 2026-27
• Linear Integrated Circuit — BTEUP Electronics 3rd Semester Syllabus 2026-27

Download the Electric Circuits and Network Syllabus PDF

Download the complete Electric Circuits and Network syllabus PDF below — prepared by KAMALDNP Academy, with the full topic list, practicals and reference books.

Download the Electric Circuits and Network Syllabus PDF

Source: BTEUP 2nd Year curriculum (folder2627), approved in C.D.C. meeting held on 16.07.2026. Topic lists follow the official syllabus; short explanations are the author's own plain-English summaries, not syllabus text. Please confirm with your own polytechnic for any local changes.