# Basic Electrical Circuits

By Prof. Nagendra Krishnapura   |   IIT Madras
Learners enrolled: 15482
Electrical circuits are everywhere, from tiny ones in integrated circuits in mobile phones and music players, to giant ones that carry power to our homes. This course deals with analysis techniques that can be applied to all such circuits. We'll first discuss electrical quantities-voltage and current-relevant to such circuits and learn about basic elements(R, L, C, controlled sources) and their properties. We'll then move on to general analysis techniques that can be applied to arbitrary circuits. We'll also discuss circuit theorems and rudiments of negative feedback circuit using the opamp. After taking this course, one should be able to analyze memoryless linear circuits.

INTENDED AUDIENCE :  Interested learners
PREREQUISITES : XII std. level algebra and calculus, electrostatics
Summary
 Course Status : Completed Course Type : Core Duration : 12 weeks Category : Electrical, Electronics and Communications Engineering Control and Instrumentation Power Systems and Power Electronics VLSI design Credit Points : 3 Level : Undergraduate Start Date : 14 Sep 2020 End Date : 04 Dec 2020 Enrollment Ends : 25 Sep 2020 Exam Date : 20 Dec 2020 IST

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

### Course layout

Week 1 : Preliminaries; Current and voltage; Electrical elements and circuits; Kirchhoff's laws,Basic elements: Voltage and current sources, R, L, C, M; Linearity of elements
Week 2 : Elements in series and parallel,Controlled sources
Week 3 : Power and energy in electrical elements, Circuit Analysis Methods
Week 4 : Nodal analysis, Extending nodal analysis with different sources
Week 5 : Mesh analysis, Circuit theorems
Week 6 : More circuit theorems, Two port parameters
Week 7 : Two port parameters continued, Reciprocity in resistive networks
Week 8 : Opamp and negative feedback, Opamps cont'd: Example circuits and additional topics
Week 9 : First Order Circuits, First Order Circuits cont'd
Week 10 : First order circuits with time-varying inputs, Sinusoidal steady state response and total response
Week 11 : Second order system-Natural response, Second order system-Cont'd
Week 12 : Direct calculation of steady state response from equivalent components, Magnitude and Phase plots; Maximum power transfer theorem

NILL

### Prof. Nagendra Krishnapura

Nagendra Krishnapura is an associate professor in the VLSI group of the department of Electrical Engineering of the Indian Institute of Technology, Madras. He works in the area of analog and mixed-signal integrated circuits and signal processing.

He graduated with a Ph.D. from Columbia University, New York in Oct. 2000. He obtained his B. Tech. degree in Electronics and Communications Engineering from the Indian Institute of Technology, Madras, in 1996. Between 2000 and 2005, he worked as a senior design engineer at Celight, Inc. and Multilink(later Vitesse Semiconductor) where he designed integrated circuits for high speed communications. From 2003 to 2005, he was an Adjunct Assistant Professor and taught courses on Analog Circuit Design at Columbia University.

### 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: 20 December 2020, 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 Madras. It will be e-verifiable at nptel.ac.in/noc
• Only the e-certificate will be made available. Hard copies will not be dispatched.