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Course10810547944 lectures

A Basic Course on Electric and Magnetic Circuits

Prof. Ashok Kumar Pradhan · IIT Kharagpur

Start with lecture 1 At NPTEL

About

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

Lectures

Week 01

  1. Lecture 01 : Electric systems YouTube
  2. Lecture 02 : Resistive circuit connections YouTube
  3. Lecture 03 : Nodal analysis YouTube

Week 02

  1. Lecture 04 : Mesh Analysis / Loop Analysis YouTube
  2. Lecture 05 : Mixed sources – Meshand Nodal analysis YouTube
  3. Lecture 06 : Superposition Theorem YouTube

Week 03

  1. Lecture 07 : Thevenin’s Theorem and its applications YouTube
  2. Lecture 08 : Norton’s theorem and Maximum power transfer theorem YouTube
  3. Lecture 09 : Review problems on DC circuits YouTube

Week 04

  1. Lecture 10 : Average and RMS values Phasor representation of sinusoids Reactance YouTube
  2. Lecture 11 : Series AC circuits, R-L, R-C, R-L-C YouTube
  3. Lecture 12 : KVL and KCL Series and parallel combination of impedance Star - delta transformations YouTube

Week 05

  1. Lecture 13 : Power Curves for AC circuits YouTube
  2. Lecture 14 : Real and Reactive Power YouTube
  3. Lecture 15 : Loop current method, nodal analysis and theorems YouTube

Week 06

  1. Lecture 16 : Theorem-examples, maximum power transfer theorem YouTube
  2. Lecture 17 : Resonance YouTube
  3. Lecture 18 : Power Factor Improvement YouTube
  4. Lecture 19 : Review problems on AC circuits YouTube

Week 07

  1. Lecture 20 : Capacitor - properties series – parallel combinations YouTube
  2. Lecture 21 : Inductor - properties series – parallel combinations YouTube
  3. Lecture 22 : Source free RC and RL Circuits YouTube
  4. Lecture 23 : Step response of RC and RL Circuits YouTube
  5. Lecture 24-a : Review Problems on RL and RC Transients YouTube
  6. Lecture 24-b : AC Transients YouTube

Week 08

  1. Lecture 25 : Basics on three phase systems YouTube
  2. Lecture 26 : Line and phase currents and voltages in star connected systems YouTube
  3. Lecture 27 : Line and phase voltages and currents in delta connected systems YouTube
  4. Lecture 28 : Three phase power YouTube
  5. Lecture 29 : Three phase power and Power factor YouTube
  6. Lecture 30 : Measurement of 3 - phase power YouTube

Week 09

  1. Lecture 31 : Magnetic flux, flux density, magnetic field strength,....... YouTube
  2. Lecture 32 : Reluctance Equivalent magnetic circuit Solving Magnetic Circuits YouTube
  3. Lecture 33 : Solving Magnetic Circuits YouTube

Week 10

  1. Lecture 34 : Hysteresis loop Hysteresis and Eddy Current loss YouTube
  2. Lecture 35 : Self and Mutual inductances Dot Convention YouTube
  3. Lecture 36 : Solving Magnetic Coupled Circuits YouTube
  4. Lecture 37 : Magnetic Circuit applications YouTube

Week 11

  1. Lecture 38 : Transformer Basics,The emf equation YouTube
  2. Lecture 39 : Ideal Transformer,Impedance Referred to Primary YouTube
  3. Lecture 40 : Practical transformer,Transformer equivalent circuit diagram YouTube

Week 12

  1. Lecture 41 : Voltage Drop and Voltage Regulation Calculation YouTube
  2. Lecture 42 : Efficiency of Transformer YouTube
  3. Lecture 43 : Transformer Tests,Transformer Applications YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Kharagpur
Department
Electrical Engineering
Teacher
Prof. Ashok Kumar Pradhan
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
Who can watch
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