EC8251 Circuit Analysis Previous Year Question Paper Download
- To introduce the basic concepts of DC and AC circuits behavior
- To study the transient and steady state response of the circuits subjected to step and sinusoidal
- To introduce different methods of circuit analysis using Network theorems, duality and topology.
UNIT I BASIC CIRCUITS ANALYSIS AND NETWORK TOPOLOGY
Ohm‘s Law – Kirchhoff‘s laws – Mesh current and node voltage method of analysis for D.C and -circuits – Network terminology – Graph of a network – Incidence and reduced incidence matrices – Trees –Cutsets – Fundamental cutsets – Cutset matrix – Tie sets – Link currents and Tie set schedules -Twig voltages and Cutset schedules, Duality and dual
UNIT II NETWORK THEOREMS FOR DC AND AC CIRCUITS
Network theorems -Superposition theorem, Thevenin‘s theorem, Norton‘s theorem, Reciprocity theorem, Millman‘s theorem, and Maximum power transfer theorem ,application of Network theorems- Network reduction: voltage and current division, source transformation – star delta conversion.
UNIT III RESONANCE AND COUPLED CIRCUITS
Resonance – Series resonance – Parallel resonance – Variation of impedance with frequency – Variation in current through and voltage across L and C with frequency – Bandwidth – Q factor – Selectivity. Self inductance – Mutual inductance – Dot rule – Coefficient of coupling – Analysis of multiwinding coupled circuits – Series, Parallel connection of coupled inductors – Single tuned and double tuned coupled circuits.
UNITIV TRANSIENT ANALYSIS
Natural response-Forced response – Transient response of RC, RL and RLC circuits to excitation by Step Signal, Impulse Signal and exponential sources – Complete response of RC, RL and RLC Circuits to sinusoidal excitation.
UNIT V TWO PORT NETWORKS
Two port networks, Z parameters, Y parameters, Transmission (ABCD) parameters, Hybrid(H) Parameters, Interconnection of two port networks, Symmetrical properties of T and π networks.
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