ABOUT THE COURSE: This is a basic course on electric and magnetic circuits suitable for any first-year undergraduate engineering program. It covers the analysis of DC circuits, AC circuits using the phasor concept, three-phase circuits, magnetic circuits and transformer-equivalent circuits. In all the chapters, it explains the concepts lucidly, like reactive power in time and phasor domains and negative wattmeter readings in three-phase circuits. It provides a comprehensive way to solve circuit problems. Overall, the course focuses on simple methods to solve different circuit problems, including transformer as a magnetic and electric circuit. INTENDED AUDIENCE: B.Tech. first year students of all engineering colleges and universities INDUSTRY SUPPORT: This is not an application oriented course.
A Basic Course on Electric and Magnetic Circuits
Indian Institute of Technology, Kharagpur and NPTEL via Swayam
Overview
Syllabus
Week 1:Concepts of circuit elements, current and voltage sources, concept of power, load, equivalence, circuits with resistances, examples.
Week 2:DC Circuit Analysis: Kirchoff’s laws, node voltage and mesh current methods, Superposition Theorem, Examples
Week 3:Thevenin’s Theorem, Norton’s Theorem, Maximum power transfer, Examples for DC circuits
Week 4:AC circuits: Average and effective values, Phasor diagram, average and reactive power, power factor. Examples
Week 5:Network analysis for AC circuits, Maximum Power transfer, Resonance, Examples
Week 6:DC Transients: Capacitance and inductance and their series/parallel combinations, RC Circuits, RL Circuits, Examples
Week 7:Three phase circuits: line and phase quantities, Balanced supply voltage and balanced loads – phasor diagram, Examples
Week 8:Measurement of three phase power, Phasor diagram, Examples
Week 9:Magnetic circuits: Ampere’s law and B-H curve, Hysteresis and Eddy current losses, Examples
Week 10:Mutually coupled circuits, dot convention, Examples
Week 11:Transformers: Construction, EMF equation, ratings, phasor diagram, equivalent circuit, Examples
Week 12:Transformers: Regulation and efficiency calculations, open and short circuit tests, Examples
Week 2:DC Circuit Analysis: Kirchoff’s laws, node voltage and mesh current methods, Superposition Theorem, Examples
Week 3:Thevenin’s Theorem, Norton’s Theorem, Maximum power transfer, Examples for DC circuits
Week 4:AC circuits: Average and effective values, Phasor diagram, average and reactive power, power factor. Examples
Week 5:Network analysis for AC circuits, Maximum Power transfer, Resonance, Examples
Week 6:DC Transients: Capacitance and inductance and their series/parallel combinations, RC Circuits, RL Circuits, Examples
Week 7:Three phase circuits: line and phase quantities, Balanced supply voltage and balanced loads – phasor diagram, Examples
Week 8:Measurement of three phase power, Phasor diagram, Examples
Week 9:Magnetic circuits: Ampere’s law and B-H curve, Hysteresis and Eddy current losses, Examples
Week 10:Mutually coupled circuits, dot convention, Examples
Week 11:Transformers: Construction, EMF equation, ratings, phasor diagram, equivalent circuit, Examples
Week 12:Transformers: Regulation and efficiency calculations, open and short circuit tests, Examples
Taught by
Prof. Ashok Kumar Pradhan
