Thursday, April 27, 2017

Signals and Systems Lec-37: Discussion on GATE Questions

Signals and Systems Lec-37: Discussion on GATE Questions
                         
           In this Lecture, i solved previous GATE Questions from Discrete-time Fourier transform 


For Video Lecture Follow the below link:



For Lecture Material download from the below link:

http://www.mediafire.com/file/7tljdv2oei8w8qw/SS_LEC-37.pdf

Signals and Systems Lec-36: Problems on Discrete-Time Fourier Transform

Signals and Systems Lec-36: Problems on Discrete-Time Fourier Transform 
                                       In this Lecture, i have given table of DTFT of basic signals and solved problems on LTI systems, Difference equations and how to find inverse Fourier transform and Fourier transform for the given transforms respectively.

For Video Lecture Follow the below link:

For Lecture Material download from the below link:

Signals and Systems Lec-35: Discrete-Time Fourier Transform

Signals and Systems Lec-35: Discrete-Time Fourier Transform
                 In this Lecture, concepts of Fourier transform periodic signals, LTI Systems, interconnections of Systems, systems characterized by difference equations are discussed.

For Video Lecture follow the below link:

https://youtu.be/SuSEW-PFBrU

 

For Lecture Material download from the below link:

http://www.mediafire.com/file/av6x7087cww8hmk/SS_LEC-35.pdf
 

http://www.mediafire.com/file/sn3sp1xz7rss239/SS_LEC-35-1.pdf  

Wednesday, April 26, 2017

Signals and Systems Lec-32,33 & 34: Discrete-Time Fourier Transform

Signals and Systems Lec-32,33 & 34: Discrete-Time Fourier Transform 
   
                         In these Lectures, i discussed how to find inverse Discrete-Time Fourier Transform (IDFT) with examples, properties of DTFT and summary on properties and also solved problems on DTFT, IDFT using formulas and properties.

For Video Lectures follow the below links:




For Lecture Material download from the below links:


Tuesday, April 25, 2017

PROBLEM SHEET ON FOURIER SERIES AND CTFT

PROBLEM SHEET ON FOURIER SERIES AND CTFT

               In this sheet i have given questions from continuous time fourier series and continuous time fourier transform from signal and systems text book. download and try to solve.

For Problem sheet download from the below link:  

Monday, April 24, 2017

Signals and Systems Lec-29,30: Continuous - Time Fourier Transform (Part 5)

Signals and Systems Lec-29: Continuous - Time Fourier Transform (Part 5)
                      In this Lecture, i solved few problems on Continuous-time Fourier transform and also discussed previous GATE problems.


For Video Lecture follow the link: 


For Lecture Material download from the below link: 

http://www.mediafire.com/file/weijaop37d0kxd3/SS_LEC-29_PROBLEMS_ON_CTFT.pdf 

http://www.mediafire.com/file/2onfx707zorwv0c/SS_LEC-30-GATE_QUESTIONS.pdf 

Signals and Systems Lec-28: Continuous - Time Fourier Transform (Part 4)

Signals and Systems Lec-28: Continuous - Time Fourier Transform (Part 4)
                       In this Lecture, concepts of Fourier transform of periodic signals, LTI system with Fourier transform and systems characterized by linear constant coefficient differential equations are explained with examples.

For Video Lecture follow the link: 


For Lecture Material download from the below link:

Friday, April 21, 2017

Signals and Systems Lec-28: Continuous - Time Fourier Transform (Part 4)

Signals and Systems Lec-28: Continuous - Time Fourier Transform (Part 4)

                                       In this Lecture, concepts of Fourier transform of periodic signals, LTI system with Fourier transform and the systems characterized by linear constant-coefficients differential equations are explained with examples. 

For Video Lecture follow the below link:


For Lecture Material download from the below link:

Thursday, April 20, 2017

Signals and Systems Lec-27: Continuous - Time Fourier Transform (Part 3)

Signals and Systems Lec-27: Continuous - Time Fourier Transform (Part 3)

                            In this Lecture, i solved ten problems on continuous Fourier transform using properties. these problems are unsolved problems from signals and systems by Oppenheim text book.

For video lecture follow the below link:

https://youtu.be/NEuMBxI7qxc 

For Lecture Material download from below link:

http://www.mediafire.com/file/93wqfqs73o9n97m/SS_LEC-27.pdf 

Wednesday, April 19, 2017

Signals and Systems Lec-26: Continuous - Time Fourier Transform (Part 2)

Signals and Systems Lec-26: Continuous - Time Fourier Transform (Part 2)

                   In this Lecture, i discussed the properties of Continuous-Time Fourier Transform. and also i have given proof for some properties with examples.

For video Lecture follow the link:


For Lecture Material download from the below link:


 

Signals and Systems Lec-25: Coninuous - Time Fourier Transform (Part 1)

Signals and Systems Lec-25: Continuous-Time Fourier Transform (Part 1):

          In this Lecture, the concept of Continuous-time Fourier Transform is introduced. and also solved few problems. 


For video Lecture follow the below link:

https://youtu.be/v09vbh3Q0N0


For Lecture Material download from the below link:

http://www.mediafire.com/file/xedpjzl5mbbctud/SS_LEC-25.pdf 

Signals and Systems Lec-24: Fourier Series and LTI Systems

Signals and Systems Lec-24: Fourier Series and LTI Systems
                                
            In this Lecture, concept of response of LTI systems to complex exponentials and Fourier series and LTI systems are explained.and also i solved some examples.

For video Lecture follow the below link:

https://youtu.be/jQ4XcdqdRdU 


For Lecture Material download from the below link:

http://www.mediafire.com/file/52gps60fa1dd7ol/SS_LEC-24.pdf 

 

Saturday, April 15, 2017

SIGNALS AND SYSTEMS LEC-17,18,19,20&21: FOURIER SERIES

SIGNALS AND SYSTEMS LEC-17,18,19,20&21: FOURIER SERIES
                    
          In these Lectures i discussed the concepts of continuous-time Fourier series and discrete-time Fourier series.

                  That is i explained how to find Complex exponential Fourier series representation, Fourier series coefficients for continuous-time periodic signals and its alternate forms for real signals. and also discussed continuous-time Fourier series properties. 

        Then i explained how to find complex exponential Fourier series representation, Fourier series coefficients for discrete-time periodic signals and discussed discrete-time Fourier series properties.  

For video lectures follow the below links:

https://youtu.be/KgoAF9csLa4





For Lecture Material download from below link:

Wednesday, April 12, 2017

NETWORK THEORY LEC-37: PREVIOUS GATE QUESTIONS-SOLUTIONS

NETWORK THEORY LEC-37: PREVIOUS GATE QUESTIONS-SOLUTIONS
                                    In this post i am giving a link for a PDF which contains the solutions to previous GATE Questions from Networks subject. i solved problems on nodal analysis, network theorems, resonance, sinusoidal steady state analysis and transient analysis. if you find any mistake please post a comment and we can discuss.

For video Lecture follow the below link:

https://youtu.be/9fwrTVp_bE4 


For Solutions PDF download from below link:

http://www.mediafire.com/file/a3a91zu1f3n227t/PREVIOUS_GATE_QUESTIONS_SOLUTIONS-Network_Theory.pdf 

Tuesday, April 11, 2017

Network Theory Lecture- 35&36

Network Theory Lecture- 35&36:
               In these Lectures i explained about magnetically coupled circuits: in this what is mutual inductance, what is coupling co-efficient, series aiding and series opposing of two mutually connected inductors, parallel aiding and parallel opposing and equivalent circuit for transformer are discussed.and also solved few problems on mutual inductance concept and finally introduced duality principle.

For video Lectures follow below links:






For Lecture Material download from the below link:

 

Saturday, April 8, 2017

Network Theory Lecture- 32,33&34: A.C Power Analysis

Network Theory Lecture- 32,33&34: A.C Power Analysis

                         In this Lecture, concepts of RMS and Average Value, instantaneous power, average power, apparent power, complex power, real and reactive power and power factor and power triangle is discussed. and also solved previous GATE problems on this concept.


For video lectures follow the below links:





For Lecture Materials download from below link:

Thursday, April 6, 2017

Network Theory Lecture- 29,30&31: Resonance

Network Theory Lecture- 29,30&31: Resonance
                                             In this Lecture, concept of series resonance and parallel resonance are discussed and also given important formulas in both concepts. and also solved previous GATE problems

For video Lecture follow the below links:

https://youtu.be/uGvYoPIy5AE 

https://youtu.be/yzoS3435qrk 

https://youtu.be/Z3k271GqA-I



For Lecture Material download from the below link: 

http://www.mediafire.com/file/n8zn2sydfy4lmt5/NWT_LEC-29%2C30%2631_Resonance.pdf
 

Network Theory Lecture- 27 & 28: Phasor Diagrams

Network Theory Lecture- 27 & 28: Phasor Diagrams:

                                           In this Lecture, i discussed the concept of phasor diagram of series RL and RC circuits, Parallel RL and RC circuits and Series and Parallel RLC circuits. And also solved some previous year GATE problems on the phasor concept.  

For Video Lecture follow the link:



For Lecture Material download from the below link: 

GATE Previous Question Papers 2014-2017

GATE Previous Question Papers 2014-2017

     In this post i am giving links for previous GATE Question Papers from 2013 to 2017. download from below links and try to solve the questions. if you are facing any problem post a comment we can discuss.

PDF Links year and set wise as follows:  












 

Monday, April 3, 2017

Problem Sheet on D.C transients

Problem Sheet on D.C transients:
                                 In this post i am giving a link for problem sheet on D.C transients in which i solved some problems and also unsolved questions are there but i have given answer for them, download it and try on your own, if you are facing any problem post a comment.

For Video Lectures on D.C transients follow the links:
 https://youtu.be/qtcdJQFsuqo

https://youtu.be/Y1heGHMEqvA 


For PDF of Problem sheet download from the link:

http://www.mediafire.com/file/11pei7okqgh0kbm/Problem_sheet_on_D.C_transients.pdf 

Saturday, April 1, 2017

Problem Sheet and Answers on Sinusoidal Steady State Analysis

Problem Sheet and Answers on Sinusoidal Steady State Analysis:
                               In this post i am giving a link for problem sheet on sinusoidal steady state analysis. in PDF sheet i also solved some problems on this concept.

For Video Lecture follow the links:
https://youtu.be/H1YHyJRBxs8 

https://youtu.be/Q-Ipt6MPUYQ 

To download problem sheet follow the link:

http://www.mediafire.com/file/iedfoznyy7wthyo/Problems_sheet_on_sinusoidal_steady_state_analysis.pdf 

Analog Circuits Lecture 2: The Ideal Diode and Its applications

In this lecture, i discussed about the ideal diode and its I-V characteristics, applications. and also discussed about  how to determine wh...