A Basic Course on Electric and Magnetic Circuits

By Prof. Ashok Kumar Pradhan | IIT Kharagpur

Learners enrolled: 5070 | Exam registration: 408

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.

Summary

Course Status :	Ongoing
Course Type :	Core
Duration :	12 weeks
Category :	Electrical, Electronics and Communications Engineering Power Systems and Power Electronics
Credit Points :	3
Level :	Undergraduate
Start Date :	22 Jul 2024
End Date :	11 Oct 2024
Enrollment Ends :	05 Aug 2024
Exam Registration Ends :	16 Aug 2024
Exam Date :	27 Oct 2024 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

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, Examples

Week 3: Superposition Theorem, 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

Books and references

[1]. Fundamentals of Electric Circuits, Charles K. Alexander and Matthew N. O. Sadiku, McGraw-Hill.
[2]. Electrical and Electronic Technology, Edward Hughes, Pearson Education.
[3]. Engineering Circuit Analysis, William Hayt, Jack Kemmerly, Jamie Phillips and Steven Durbin, McGraw-Hill, 2020

Instructor bio

Prof. Ashok Kumar Pradhan

IIT Kharagpur

Prof. A K Pradhan is a Professor, HAG, in Electrical Engineering at IIT Kharagpur. He was institute Chair Professor during 2019-2022. He is a fellow of INAE and INSA. He has more than 3 decades of teaching experience in Electrical Engineering. His NPTEL course on Power System Protection is very popular. He has supervised 16 PhD theses in Electrical Engineering. He has more than 110 journal publications and contributed significantly in the area of Power Systems. Professor Pradhan has involved with several projects and consultancy work worth more than 14 crores as principal investigator.

Website Link : https://sites.google.com/view/prof-ashok-kumar-pradhan/

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 27 October 2024 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

SWAYAM Helpline / Support