A simple C++ program

Dear Students

Today we discuss a short introduction to C++ program, which is the chapter included in the PY1644 course in the sixth semester. Go through the following lecture note.

For PDF lecture, CLICK HERE

Thanks for visiting

Regards....

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Three elastic moduli

Dear students

 Good morning and greetings from Department of Physics. In the core course PY1141( Basic mechanics and properties of matter) , there is a chapter entitled elasticity. Topics from that module are included here.

This class deals with the three moduli of elasticity city, viz., Young's modulus, Bulk modulus and Rigidity modulus. The lecture notes are provided here with. Go through it.

For PDF lecture, CLICK HERE

Thanks for visiting

Regards.....

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Special devices: JFET & MOSFET

Dear Students

 Go through the following lectures regarding JFET & MOSFET

For PDF lecture CLICK HERE

The audio lecture shall be uploaded shortly

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Regards

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OP-AMP

Dear students

                        This lecture deals with the operational amplifier (IC 741). It is as per PY1543 course of your semester 5. Go through the lectures.

For PDF lecture notes, CLICK HERE

The audio lecture shall be uploaded shortly

Thanks for visiting....

Regards

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FDP Certification

NEP webinar

Talk on NEP 2020

For watching the video, CLICK HERE

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Regards..

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Modulation & demodulation

Dear Students

 Here we discuss modulation and demodulation. Go through the following lectures.

For PDF lecture, CLICK HERE

The audio lecture shall be uploaded later.

Thanks for visiting here !!

Regards.......

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Certification: Short term FDP

Principles of feedback & transistor Oscillators

Dear students

 In this lecture, we discuss the principles behind feed back mechanism in transistor amplifiers. The two types of feed back methods such as negative feedback and positive back are discussed. Positive feed back is employed in the case of transistor oscillators. The necessary condition for oscillating circuit, various elements of transistor oscillators, different types of transistor oscillators are discussed here. 

For viewing the PDF lecture, CLICK HERE

For audio lecture part 1, CLICK HERE

For audio lecture part 2, CLICK HERE

Thanks for visiting

Regards.....

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Classification of power amplifiers

Dear students

 Power amplifiers are classified into three. Class A, Class B and Class C power amplifiers are them. 

Push pull amplifier is a featured Class B operation with two transistors connected back to back.

The detailed lectures are provided here with

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

Thanks for visiting here

Regards.....

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Introduction to power amplifiers

Dear students

Go through the following lectures regarding an introduction to power amplifiers

For PDF lecture,  CLICK HERE

For audio lecture, CLICK HERE 

Thanks

Regards...

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WKB approximation method

Dear students

Go through the following lectures regarding WKB approximation method.

For PDF lecture, CLICK HERE

 audio lecture shall be uploaded shortly.

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Regards......

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Practical methods of transistor biasing

Dear students,

Today we discuss the topic transistor biasing. The key points are what is meant by faith ful amplification and what the basic requirements for achieving faithful amplification. Once, the transition achieve faithful amplification, it is said to be properly biased. 

There are different methods for practically biasing a transistor circuit. This is discussed here. In most practical cases CE configuration is used.

Go through the following lectures:

For PDF lecture, CLICK HERE

For audio lecture part 1, CLICK HERE

For audio lecture part 2, CLICK HERE

For audio lecture part 3, CLICK HERE

Thanks for visiting!!

Regards.....

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Time dependent perturbation theory

Dear students

In this class, we discuss the time dependent perturbation theory. Go through the following links.

For viewing the PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

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Regards......

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Ground state of Helium atom

Dear students

 Follow the links for having lecture related to ground state of helium atom using time independent perturbation theory and using variation principle.

For PDF lecture using TIPT, CLICK HERE

For audio lecture using TIPT, CLICK HERE

For PDF lecture using variation method, CLICK HERE

For audio lecture using variation method, CLICK HERE

Thanks for visiting...

Regards...

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Power rating of transistors

Dear Students

    Go through the following links for lecture related to power rating or maximum power dissipation of a transistor and power dissipation curve.

For PDF lecture, CLICK HERE

For listening to audio lecture, CLICK HERE

For solutions to numerical problems related to power dissipation, CLICK HERE

Thanks for visiting

Regards....

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Cut off and saturation points

Dear students

   Go through the following link for lecture related to cut off and saturation points in CE Circuit.

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

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Regards

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Variation method

Dear students

 Go through the following link for the lecture related to variation method for solving Schrodinger equations for exact solutions.

For PDF lecture, CLICK HERE.

For audio lecture part 1, CLICK HERE

For audio lecture part 2, CLICK HERE

Thanks

Regards....

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CE amplifier

Dear students

Go through the following link for lecture regarding CE amplifier

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

Thanks...

Regards

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Exercise on dc load line and Q point

Dear students

Go through the following link for referring to exercises on DC load line and quiescent point:

https://drive.google.com/file/d/1GcoldYdaDCfozh2GWMAHmGa0aoDA0_kd/view?usp=drivesdk

Thanks

Regards.....

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More about CE connection: Load line and operating point

Dear Students

In his class, we discuss the load line and operating point in CE connection.

For PDF lecture, CLICK HERE

Fod audio lecture, CLICK HERE

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Regards

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Anharmonic oscillator: First order correction using time independent perturbation theory

Dear students

 The first order correction in the non-degenerate ground state of an anharmonic oscillator is discussed here using time independent perturbation theory. Go through the lecture:

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

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Regards

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Common Collector connection in BJTs

Dear students

     The CC connection in BJTs are discussed here. Go through it.

For PDF lecture, CLICK HERE

Audio lecture is available HERE

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Regards.....

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Degeneracy of states: time independent perturbation theory

Dear Students

        The first order correction in energy eigen values related to a two fold degeneracy states using time independent perturbation theory has been discussed here.

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

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Regards......

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BJT: Common Emitter Characteristics

Class code: 16 & 17, course code: PY1543

Dear Students

          In this class the common emitter connection in npn and pnp transistors and its characteristics have been discussed.

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

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Regards.....

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BJT connections: Common Base Characteristics

Dear students

     Please find the lecture attached to the link.

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

Thanks

Regards....

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Bipolar Junction Transistors

Dear students

         In the last class we discussed an introduction to transistors. In fact we made an introduction to Bipolar Junction Transistors (BJT). The name BJT has been used for this type of transistors, because of having two polarity charge carriers , viz., electrons and holes, corresponding to npn and pnp transistors.

        There is another type of transistors called , Field Effect Transistors (FET), which is not discussed here. So far we have used the word transistor for BJT alone, and will continue the same, till otherwise FET has to be mentioned. 

For PDF lecture, CLICK HERE

For listening to audio lecture, CLICK HERE

Thanks for visiting here

Regards....

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Introduction to transistors

Dear students

    Here I am providing a short introduction to transistors

For lecture notes, CLICK HERE

For audio lecture, CLICK HERE

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Regards....

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Zener diode

Dear students

In this class we discuss Zener diodes

For PDF note, click here

For audio lecture, click here

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Regards...

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Time independent perturbation theory

Reach at exact solution to Schrodinger equation is almost practically impossible , especially when the potential energy of the system is verying. When the changes in potential energy is very small, we use approximation technique like perturbation theory to solve the Schrodinger equation. Perturbation means small changes in potential energy of the system. Here we discuss the time independent perturbation theory to reach at proximate solution to a perturbed system.

For PDF lecture notes,CLICK HERE

For audio lecture part 1 , CLICK HERE

For audio lecture part 2 , CLICK HERE

Thanks for visiting

Regards....

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Filter circuits

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Dear Students

    In this class we will discuss the various filter circuits used in rectifier circuits.

For PDF lecture, CLICK HERE

For audio lecture, CLICK HERE

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Regards......

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Full wave rectifiers

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Dear students

         In this class we will discuss the different types of full wave rectifiers, their efficiency , advantages , disadvantages and ripple factor.

For the full PDF lecture, CLICK HERE

For the audio lecture, CLICK HERE

Thanks for visiting....

Regards..

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FDP certification

Certification as faculty coordinator for Learn in Lockdown with AKPCTA

Diode characteristics and half wave rectifier

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Dear students

  In this class we discuss the characteristics of crystal diodes and their utility as half wave rectifier. The lecture is included in the following links

For the PDF lecture notes, Click here

For video class, CLICK HERE

Thanks for visiting!

Regards...

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Quiz on semiconductor physics

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Dear students

 Try to answer the following questions!

Regards........

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Physics of Semiconductors

Dear Students

In this class, the basic physics of Semiconductors are discussed.

To listen the audio class, CLICK HERE

Lecture notes are  available in the following link. For full PDF, CLICK HERE

Thanks for visiting

Regards.......

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Boundary conditions in a dielectric interface

Dear Students

In this class we shall discuss the boundary conditions in dielectric interface.

For better view of the scripted lectures, click the following images one by one.

For downloading the full PDF, CLICK HERE

For the recorded video class, CLICK HERE

(In the lecture consider E2t=0 as boundary condition when one of the media in the dielectric interface ( say, medium 1) is conductor, perhaps by tongue slip even I used sigma at the initial and last)

Thanks for visiting

Regards....

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