EC25C02 Circuits and Network Analysis – Semester II – ECE / VLSI / ElecComp – R-2025

Subject Code & Name: EC25C02 – Circuits and Network Analysis

Regulation: R-2025

Semester: II (Second Semester)

Branch: ECE / VLSI / ElecComp

Credits / L-T-P: 3 Credits | L-T-P: 3-0-0

Course Objectives

• To impart the fundamental principles of circuit laws, network theorems, and analysis techniques for DC and AC circuits.
• To gain analytical and simulation skills for both steady-state and transient behaviors in AC and DC circuits.

Full Unit-wise Syllabus

Unit I Circuit Laws and Network Theorems

Basic electrical components, voltage, current, power, Network terminology- Node, Junction, Branch, Loop, Short and Open Circuits, DC and AC circuits, Ohm's Law, Kirchhoff’s Laws, Resistors, inductors, and capacitors in series and parallel, voltage and current division rule, Mesh and Nodal Analysis for AC and DC circuits, Source transformation techniques, Star delta transformation techniques, principle of linearity, Thevenin’s and Norton’s theorems, Superposition theorem, Maximum power transfer theorem, Reciprocity theorem.

Unit II – Steady-State and Transient Analysis of AC and DC Circuits

Components behavior (R, L, and C) in AC and DC, Characteristics of sinusoids, Phasor relationship for R, L, and C, Phasor diagram, Natural and forced response, Steady-state and Transient analysis of RL, RC, RLC circuits using Laplace Transform.

Unit III – Resonance and Coupled Circuits

Natural frequency and Damping ratio, Series resonance, Parallel resonance, Quality factor (Q), Bandwidth, Selectivity, Effect of Q on bandwidth and selectivity. Self-inductance, Mutual inductance, Dot conversion, Ideal Transformer.

Unit IV – Linear Two-Port Network Analysis

Introduction to two-port networks, Characterization in terms of impedance, admittance, hybrid, and transmission parameters, parameter conversions, Interconnection of two-port networks – Symmetry and Reciprocity.

Course Outcomes (COs)

• CO1: Explain basic circuit laws, network theorems, and the behavior of circuit components.
• CO2: Apply network analysis methods, such as mesh analysis and nodal analysis, for solving DC circuits.
• CO3: Analyze and evaluate the steady-state and transient behaviors of RL, RC, RLC circuits and two-port networks.

Assessment Pattern (Quick Note)

• Weightage: Continuous Assessment 50% | End Semester Examinations 50%
• Internal methodology: Quiz (15%), Assignments (30%), Flipped Class (5%), GATE Questions (10%), Internal Examinations (40%)

Source: Official Anna University – B.E. Electronics and Communication Engineering R-2025 Syllabus
Last Updated: September 2026