NCERT CBSE Physics Standard 12 Semiconductor Electronics Chapter 14

Must see http://zookeepersblog.wordpress.com/some-points-which-i-wish-all-my-new-prospective-students-know/

AND Gate Truth Table, symbol and logic

1a AND gate truth table symbols

:-)

2 Donor Card be a organ donor

:-)

NAND Gate Truth Table, symbol and logic

1a NAND gate truth table symbol logic

:-)

NOR Gate Truth Table, symbol and logic

1b NOR Gate truth Table symbol logic

:-)

OR Gate Truth Table, symbol and logic

1c OR Gate truth Table symbol logic

:-)

1d NOT Gate

1b Inverting bubble

NOT gate can be implemented by NOR Gate. All the pins have to be connected to same signal.

1c NOT gate with NOR

Similarly NOT gate can be implemented with NAND gates

1d NOT gate with NAND

:-)

X-NOR Gate symbol, truth table

1e ex-NOR gate

:-)

x-OR Gate symbol, truth table

1f ex-OR gate symbol, logic truth table

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The next chapter Solution is at https://zookeepersblog.wordpress.com/ncert-cbse-physics-standard-12-communication-systems-chapter-15/
!
The previous chapter Solution is at https://zookeepersblog.wordpress.com/ncert-cbse-physics-standard-12-nuclei-chapter-13/
!
The first Chapter Solution is at https://zookeepersblog.wordpress.com/ncert-cbse-physics-standard-12-electric-charges-and-fields-chapter-1/
:-)
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Boolean Algebra and Identities
 
1a Boolean algebra and identities

:-)

2 wall art man combing hair

:-)

Implementing OR Gate with NAND gates

1e Implementing OR gate with NAND gates

Implementing AND gate with NOR gates

1f AND gate implementation with NOR gate

:-)

1 Bachcha Okapi

:-)

1a Colour Code for Carbon Resistors 1b Colour Code for Carbon Resistors

1c Colour Code for Carbon Resistors

-

1d Colour Code for Carbon Resistors

-

1e Colour Code for Carbon Resistors

:-)

1 Black and white Twins

:-)

Varactor diode

3a Varactor Diode

-

Common emmiter

1f In a common emmiter configuration base E voltage

-

Common base

1g In a common base configuration the collector

-

Common emitter

1h In a common emitter amplifier the output resistance

-

Common base

1i In a common base amplifier circuit calculate

-

Common base

1j In a common base circuit of a transistor

-

Common emitter

2a A transistor is connected in a common emitter

2b A transistor is connected in a common emitter

:-)

1 endengered lizard

:-)

31a Conductivity mobility electron semiconductors

:-)

Bears - Panda Bears - Rare Animals of the World

:-)

31b Conductivity mobility electron semiconductors

:-)

1 hairless bear

:-)

31c Conductivity mobility electron semiconductors

:-)

1 ibex

:-)

31d Conductivity mobility electron semiconductors

:-)

1 percupine echidna

:-)

31e Conductivity mobility electron semiconductors

:-)

1 rare blue colour crab

:-)

31f Conductivity mobility electron semiconductors

:-)

1 rare west papua animal

:-)

31g Conductivity mobility electron semiconductors

:-)

2 african-bush-elephant

:-)

31h Conductivity mobility electron semiconductors

:-)

2 albino-turtle

:-)

31i Conductivity mobility electron semiconductors

:-)

2 rare maned wolf

:-)

31j Conductivity mobility electron semiconductors

:-)

2 rare rat

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31k Conductivity mobility electron semiconductors

The next chapter Solution is at https://zookeepersblog.wordpress.com/ncert-cbse-physics-standard-12-communication-systems-chapter-15/
!
The previous chapter Solution is at https://zookeepersblog.wordpress.com/ncert-cbse-physics-standard-12-nuclei-chapter-13/
!
The first Chapter Solution is at https://zookeepersblog.wordpress.com/ncert-cbse-physics-standard-12-electric-charges-and-fields-chapter-1/
:-)
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31l Conductivity mobility electron semiconductors

http://zookeepersblog.wordpress.com/science-tuition-chemistry-physics-mathematics-for-iit-jee-aieee-std-11-12-pu-isc-cbse/

In youtube  search for Zookeeper Dezrina     you will get most videos. I say most because I do not upload all videos that I make. I have many more videos which are not in the net.

http://zookeepersblog.wordpress.com/iit-jee-capacitance/

Casimir,Polder,Davies,Unruh,BELL,Aspect,Galileo,Mosley,Chadwick,Feynman,Schrodinger
http://www.youtube.com/watch?v=672a2lLgxao

31m Conductivity mobility electron semiconductors

Synthesizing new life forms http://www.youtube.com/watch?v=AKxmqMH4w_A

http://zookeepersblog.wordpress.com/iit-jee-3d-geometry-solutions/

http://zookeepersblog.wordpress.com/iit-jee-algebra/

http://zookeepersblog.wordpress.com/iit-jee-area-problems/

31n Conductivity mobility electron semiconductors

http://zookeepersblog.wordpress.com/iit-jee-binomial-theorem/

http://zookeepersblog.wordpress.com/iit-jee-calculus/

http://zookeepersblog.wordpress.com/iit-jee-optics/

http://zookeepersblog.wordpress.com/iit-jee-co-ordinate-geometry/

31o Conductivity mobility electron semiconductors

http://zookeepersblog.wordpress.com/iit-jee-complex-number/

http://zookeepersblog.wordpress.com/iit-jee-current-electricity-circuits/

http://zookeepersblog.wordpress.com/iit-jee-determinant-and-matrices/

31p Conductivity mobility electron semiconductors

31q Conductivity mobility electron semiconductors

http://zookeepersblog.wordpress.com/iit-jee-differentiability/

http://zookeepersblog.wordpress.com/iit-jee-electromagnetics/

http://zookeepersblog.wordpress.com/iit-jee-electrostatics/

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31r Conductivity mobility electron semiconductors

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31s Conductivity mobility electron semiconductors

The following Videos are available for you ( As of Now ).  These explain tricky Physics  and Mathematics Numericals.

Eventually I will try to give Videos for full course here for you.

These covers PU ( Pre University courses, school / college ) courses, IIT JEE, AIEEE ( All India Engineering Entrance Examination ) , CET ( Combined Engineering Test ), AIPMT ( All India Pre Medical Test ), ISc ( Intermediate Science / Indian School Certificate Exam ), CBSE ( Central Board Secondary Exam ), Roorkey Joint Entrance Test Questions ( Discontinued since 2002 ), APhO ( Asian Physics Olympiad ), IPhO ( International Physics Olympiad ), IMO ( International Mathematics Olympiad ) , NSEP ( National Standard Exam in Physics ), RMO ( Regional Math Olympiad , India ), INMO ( Indian National Maths Olympiad ), Irodov Solutions, Prof. H C Verma ( Concepts of Physics ) Solutions etc.

( You can see the history of Indian Participation in various Olympiads at -> http://zookeepersblog.wordpress.com/indian-participation-in-ipho-icho-ibo-and-astronomy-olympiad/ )

[ In each of these videos there is at-least 1 or more errors. Please tell me about those ]

In youtube if you search as ” Dezrina ” or ” Zookeeper Physics ” you should get to see all the Uploaded videos. Though we have many more study videos.

Thanks and Regards
Zookeeper ;-D    Subhashish Chattopadhyay

[ I suggest you see the videos starting with 1- first then starting with 2- ..... in that sequence. ]

[ Tell your friends about this link if you liked the videos ]

In case of doubts or suggestions, Please send me email at    mokshya@gmail.com

In youtube you can search for Dezrina as these have been uploaded with this login-id. or search for ” Zookeeper IIT JEE Physics “

Answers to -> Frequently Asked Questions ( FAQ ) [ commonly asked intelligent Questions :-)  ]

1 ) How do I prepare for IIT ?

Ans : – See the videos made by me ( in youtube search as Dezrina or “ Zookeeper Physics “ – will see all Uploaded ones. Though we have many more which have not been uploaded ). While watching the videos, take notes and try to solve the problems yourself by pausing the video. Tell me if any calculation is wrong. See the videos with 1- first then 2- and so on.  Write to IAPT Kothrud, Pune office to buy ( 150 Rs approx ) the book with previous papers of NSEP ( National Standard Exam in Physics – The 1st level ), INPhO ( Indian National Physics Olympiad – 2nd level ). Prepare with these and see how much you are scoring. You can guess your ALL INDIA rank easily from NSEP, and INPhO rank. Since 1998 the IIT JEE toppers have been mostly representing India in IPhO.

2 ) Some Videos have sound Problem … what do I do ?

Ans : – Only 4 videos have very slight sound echo problem. The same topic got covered again ( many times ) in other videos correctly. The room in which these 4 videos have been recorded had windows only on one side. That gave little bit echo problems. Also external noise of cars, auto, children shouting have randomly come in. You have to have good speakers with filters or good earphones with filters. We have checked mostly it is OK with these. ( If you are depending only on your embedded speakers of computer /screen / keyboard then there may be extra distortions. As these speakers are often not of good Quality. Also install latest KL Codecs ) In any case reduce the volume see the board, imagine sitting in the last bench and solving the problems of your own. See if your solution differs anywhere with the scribbles on the board.

3 ) Why are you giving these ( high Quality ) lecture for free ?

Ans : Well there are lot of good things free in this world. Linux, My-SQL, Open-Office ….. Go to sourceforge and get thousands of high quality software free along with source code. Yes all officially free …. Why do you think Richard Stallman, Zimmerman, ….. etc are considered Guru philosophers ? In Punjab and Gurudwaras worldwide there are so many Langars where you get better food than Restaurants. … why ? Why do you have Dharmasalas and subsidized rest rooms near hospitals / Famous Temples / various places ? in Iftar party anyone can eat for free …  why ?  I am teaching for 20 years now and observed most students can do much better if they have the self motivation to solve and practice. Cheap books are available in second hand bookstalls, where you get thousands of Numericals to solve ….. but most students will like to blow their time going and coming for tuition, travel time …. TV for hours and hours watching cricket / Tennis games, playing computer games …. My free lectures are not going to make much difference in spending of unnecessary money for coaching ….. I know very well , how much people enjoy .. , spending unnecessarily !!    Do you know that there are NO poor / needy students in Bangalore. Sometime back I had tried to teach for IIT JEE FREE. Discussed with a few NGOs and social service guys. Arranged rooms but got only 1 student. We had informed many people in many ways to inform students …. We did not get students who are ready to learn for free. So I am sure these lectures are NOT FREE. If anyone learns from these, s/he changes and that’s the gain / benefit. This change ( due to learning ) is very costly …. Most do not want to learn ………..

In youtube  search for Zookeeper Dezrina     you will get most videos. I say most because I do not upload all videos that I make. I have many more videos which are not in the net.

4 ) How can I get all your lectures ?

Ans : – Apart from my lectures there are approx 450GB of PCM ( Phy, Chem, Math ) lectures. It takes approx 3 years of continuous download from scattered sources. I have ( 20,000 )Thousands  of these. You can take ALL of them from me in an external 500 GB hard disk, instead of spending so much money and time again for downloading. These cover ( by Various  Professors )  everything of Chemistry, Physics, Maths… Lot of this is from outside India … as foreigners have much wider heart than Indians ( as most of GNU / open source software have been developed  by Non-Indians ). I observed the gaps in these videos, and thus I am solving IIT, APhO, Roorkey, IPhO Numericals. Videos made by me along with these videos gives a complete preparation.

Send me a mail at          mokshya@gmail.com          to contact me.

In youtube  search for Zookeeper Dezrina     you will get most videos. I say most because I do not upload all videos that I make. I have many more videos which are not in the net.

5 ) How do you get benefited out of this ?

Ans :- If anyone learns we all will have better people in this world. I will have better “ YOU “.

6 ) Why do you call yourself a Zookeeper ?

Ans :- This is very nicely explained at http://zookeepersblog.wordpress.com/z00keeper-why-do-i-call-myself-a-zoookeeper/
7 ) Where do you stay ?

Ans :- Presently I am in Bangalore.

8 ) If I need videos in a few topics can you make them for me ?

Ans :- Yes. You have to discuss the urgency with me. If I am convinced I will surely make these quickly for you and give you and ALL. I teach both Maths and Physics. So anything in these 2 subjects are welcome.

9 ) Why did you write an article saying there are No Poor students ?

Ans :- There are lots of NGOs and others working for rural / poor children education at lower classes. While very less effort is on for std 9 till 12. Also see the answer in question number ( 3 ) above. In last 20 years of teaching I never met a Poor child who was seriously interested in ( higher ) studies. As I have a mind / thinking of a ” Physicist “, I go by ” Experimental Observation “.

It is not about what is being said about poor in media / TV etc, or ” what it should be ” ( ? ) …. It is about what I see happening. Also to add ( confuse ? you more )…. You must be knowing that in several states over many years now girl students have better ( by marks as well as by pass percentage ) result in std 10 / Board Exams….. well but NEVER a girl student came FIRST in IIT JEE … why ? [ The best rank by a Girl student is mostly in 2 digits, very rarely in single digit ]  ????? So ????

10 ) How much do I have to study to make it to IIT ?

Ans :- My experience of  Teaching for IIT JEE since last 20 years, tells me, Total 200 hours per subject ( PCM ) is sufficient. If you see my Maths and Physics videos, each subject is more than 200 hours. So if someone sees all the videos deligently, takes notes and remembers, …… Done.

11 ) What is EAMCET ?

Ans :- Engineering Agriculture and Medicine Common Entrance Test is conducted by JNT University Hyderabad on behalf of APSCHE. This examination is the gateway for entry into various professional courses offered in Government/Private Colleges in Andhra Pradesh.

12 ) In your videos are you covering other Exams apart from IIT ?

Ans : – Yes. See many videos made by solving problems of MPPET, Rajasthan / J&K CET, UPSEAT ( UPES Engineering Aptitude Test ), MHCET, BCECE ( Bihar Combined Entrance Competitive Examination Board ), WB JEE etc

13 ) What is SCRA ?

Ans : – Special Class Railway Apprentice (SCRA) exam is conducted by Union Public Service Commission (UPSC) board, for about 10 seats.That translates into an astonishing ratio of 1 selection per 10,000 applicants. The SCRA scheme was started in 1927 by the British, to select a handful of most intelligent Indians to assist them in their Railway Operations, after training at their Railway’s largest workshop, i.e. Jamalpur Workshop, and for one year in United Kingdom. The selected candidates were required to appear in the Mechanical Engineering Degree Exmination held by Engineering Council (London).

Thanks for your time. To become my friend in google+  ( search me as  mokshya@gmail.com and send friend request )

Read http://edge.org/responses/what-scientific-concept-would-improve-everybodys-cognitive-toolkit

Temperature-Sea Levels-CO2-etc always have been fluctuating over ages-Global Warming
http://www.youtube.com/watch?v=DMH8O9v6YaY
The following video is a must see for full CO2 cycle, plates of Earth, Geological activities, stability of weather
http://www.youtube.com/watch?v=Qtv_JD_I5X8
The Great Global Warming swindle
http://www.youtube.com/watch?v=YtevF4B4RtQ
Article in Nature says CO2 increase is good for the trees http://thegwpf.org/science-news/6086-co2-is-greening-the-planet-savannahs-soon-to-be-covered-by-forests.html
Ice cap variations, Temperature and humidity fluctuations nicely explained
http://www.youtube.com/watch?v=pz-w4NWRObw
http://climaterealists.com/index.php?id=9752

BBC documentary Crescent and Cross shows the 1000 years of fight between Christians and Muslims. Millions have been killed in the name of Religion. To decided whose GOD is better, and which GOD to follow. The fight continues. http://www.youtube.com/watch?v=zqK-RuntywY
The Virus of Faith
http://www.youtube.com/watch?v=scarHc8RA0g
The God delusion
http://www.youtube.com/watch?v=LVr9bJ8Sctk
cassiopeia facts about evolution  http://www.youtube.com/watch?v=K7tQIB4UdiY
Intermediate Fossil records shown and explained nicely Fossils, Genes, and Embryos http://www.youtube.com/watch?v=fdpMrE7BdHQ

The Rise Of Narcissism In Women  http://www.youtube.com/watch?v=wZHKCbHGlS0
13 type of women whom you should never court http://timesofindia.indiatimes.com/life-style/relationships/man-woman/13-Women-you-should-never-court/articleshow/14637014.cms
Media teaching Misandry in India www.youtube.com/watch?v=-M2txSbOPIo

Summary of problems with women http://problemwithwomentoday.blogspot.in/2009/12/problem-with-women-today-what-in-hell.html
Eyeopener men ? women only exists www.youtube.com/watch?v=6ZAuqkqxk9A
Most unfortunate for men http://www.youtube.com/watch?v=73fGqUwmOPg

Miracles for Sale http://www.youtube.com/watch?v=iuP5uOI7Xwc
The Enemies of Reason http://www.youtube.com/watch?v=0CyMglakWoo
Each of you is an Activist in some way or other. You are trying to propagate those thoughts, ideas that you feel concerned / excited about. Did you analyze your effectiveness ? http://www.youtube.com/watch?v=61qn7S9NCOs Culturomics can help you :-D
Why some temples become ” FAMOUS ” ? How you can be manipulated ? Luck for others ? http://www.youtube.com/watch?v=O4mN33w5Ftw

see how biased women are. Experimental proof. Women are happy when they see another woman is beating a man ( see how women misbehave with men )
www.youtube.com/watch?v=LlFAd4YdQks
see detailed statistics at http://www.youtube.com/watch?v=5lHmCN3MBMI

An eye opener in Misandry http://www.youtube.com/watch?v=YiTaDS_X6CU

My sincere advice would be to be EXTREMELY careful ( and preferably away ) of girls. As girls age; statistically certain behavior in them has been observed. Most Male can NOT manage those behaviors… Domestic violence, divorce etc are rising very fast. Almost in all cases boys / males are HUGE loosers. Be extremely choosy ( and think from several angles ) before even talking to a girl. http://zookeepersblog.wordpress.com/save-the-male/
How women manipulate men http://www.angryharry.com/esWomenManipulateMen.htm

Gender Biased Laws in India http://zookeepersblog.wordpress.com/biased-laws/
Violence against Men http://www.youtube.com/watch?v=MLS2E-rRynE
Only men are victimised http://www.youtube.com/watch?v=4JA4EPRbWhQ

Men are BETTER than women http://www.menarebetterthanwomen.com/
see  http://www.youtube.com/watch?&v=T0xoKiH8JJM#!
Male Psychology http://www.youtube.com/watch?v=uwxgavf2xWE

Women are more violent than men http://www.independent.co.uk/news/uk/home-news/women-are-more-violent-says-study-622388.html

Misandry in Media http://www.youtube.com/watch?v=j7U0r7vIrgM
In the year 2010, 168 men ended their lives everyday ( on average ). More husbands committed suicide than wives. http://www.rediff.com/news/report/ncrb-stats-show-more-married-men-committing-suicide/20111028.htm

It is EXTREMELY unfortunate that media projects men as fools, women as superiors, Husbands as servants, and replaceable morons. In ad after ad worldwide from so many companies, similar msg to disintegrate the world is being bombarded. It is highly unacceptable misandry http://www.youtube.com/watch?v=oq14WHkFq30

It is NOT at all funny that media shows violence against MEN. Some advertisers are trying to create a new ” Socially acceptable culture ” of slapping Men ( by modern city women ). We ( all men ) take objection to these advertisements. We oppose this Misandry bad culture. Please share to increase awareness against Men bashing http://www.youtube.com/watch?v=D8ecN2rh0uU

Are you a nice person ? Just shout Wooooooooo , Eyye Eyye and enjoy to see someone in trouble …. Extension of Milgram Experiments – In a Mob also people become cruel step by step – http://www.youtube.com/watch?v=scOJqyiYVtk

Think what are you doing … why are you doing ? http://www.youtube.com/watch?v=qp0HIF3SfI4

Every Man must know this …  http://www.youtube.com/watch?v=cIFmQHJEG1M
Manginas, White Knights, & Other Chivalrous Dogs  http://www.youtube.com/watch?v=oXQDtBT70B8

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: ****__********__***
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……##### u r #####
……..### SWEET. ###
……/….#########…\
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(.(.(____)….`.#.´..(____).).)

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