EE8251 – CIRCUIT THEORY Regulation 2017

UNIT I BASIC CIRCUITS ANALYSIS

Resistive elements – Ohm’s Law Resistors in series and parallel circuits – Kirchoffs laws – Mesh current and node voltage – methods of analysis.

UNIT II NETWORK REDUCTION AND THEOREMS FOR DC AND AC IRCUITS

Network reduction: voltage and current division, source transformation – star delta conversion. Thevenins and Norton Theorems – Superposition Theorem – Maximum power transfer theorem –
Reciprocity Theorem – Millman’s theorem.

UNIT III TRANSIENT RESPONSE ANALYSIS

L and C elements -Transient response of RL, RC and RLC Circuits using Laplace transform for DC input and A.C. sinusoidal input.

UNIT IV THREE PHASE CIRCUITS

A.C. circuits – Average and RMS value – Phasor Diagram – Power, Power Factor and Energy.- Analysis of three phase 3-wire and 4-wire circuits with star and delta connected loads, balanced & un balanced – phasor diagram of voltages and currents – power measurement in
three phase circuits.

UNIT V RESONANCE AND COUPLED CIRCUITS

Series and parallel resonance – their frequency response – Quality factor and Bandwidth – Self and mutual inductance – Coefficient of coupling – Tuned circuits – Single tuned circuits.

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