Lecture - 5 Some Useful Theorems in Basic Electronics

[MintEEV]

Fuck why does this idiot have to yell. Great lecture, fucking horrid sound.

[MrNagarameshkumar]

i like it alot

[MrMygolu]

awesome lecture.......

[rahdi1]

excellent lectures,Thank you sir

[joemaya2793]

very very good...guys he's a professor in IIT....hes like god in his subject..!!

[tampusXD]

this explanations are too usefull

[Nicola72av]

Hi dear prof!

Thanks a lot for all your beautiful and interesting lessons!

I send you a dear greeting from Italy.

Have a nice day!

[fifelifes]

great explanation thanks.scotland

[richardcavell]

I don't get any of this. I don't think it's explained well. How about doing another lecture on circuit analysis and breaking it down better?

[h0wud0in2]

intro was looool haahahahah laughed hard

[znoyesu2]

Hi, I think a mistake was made on the second example (two voltage sources, finding the thevenin equivalent). You had added the resistances as if they were in series to find Rth, but if you short circuit the voltage sources, the resistances are in parallel.

[dheeraj5700]

thanx alot sir i wl complete my btech wd yr lecture series u r g8 thanx once again

[dheeraj5700]

thanx alot sir i wl complete m engg. wd your lectures series u r g8 may god bless u:)

[svmayol]

hi sir, i just want to clarify where did the 150 ohms for RL came from when we try to calculate for V load?( from the thevenins example of the two circuits break together) thanks

[flvasshole]

thank u sir..ur leactures help me a lot..i am here in UK but the teachers here dont make us understand to such a great extent..

[flvasshole]

thank u sir..ur leactures help me a lot..

[sadboy467]

thank u sir

[gummaish]

hats off to mr. natarajan

[jahskido06]

THANKYOU..Prof..very useful material and ur explanation and course material is superb!! Many Thanks!

[nautul14]

where do i get the breadboard software

[asifmamsa]

Excellent series to learn basic electronics. Very clear speech sir and examples are well explained. Thank you for your honest and consistent efforts.

[yukonheart]

Hey Professor Great JOb - pay no attention to the petty small minds we really appreciate your work !! Thanks

[ysayad1977]

in first thevenin exemple, it seems to me that we also measure voltage drop across R3 when measuring Vth!?

[theg4tan]

my final project about BiCMOS, i need Ebook for literature. please share

help me please

thanks

[stefengullicksen]

Thank you for the time and effort. It is amazing how you fill in the many missing gaps in my non-electronic background. Your generosity is deeply appreciated.

[iorixs]

where can you get that breadboard software?

[tsniit]

theses are developed by me. The videos are prepared by a Govt of India Project so it can be free.

[iorixs]

you know where to get this software?

[ash1ayo]

natarajan sir is superb. thanks to IITs which are doing this kind job for those also who are not part of their institutes!

[lilmex281]

thanks alot for posting these videos on here. They are very helpful , and explain everything in details. thanks alot once again!!  Houston Tx.

[ameriqbalqureshi]

Great work, Prof.

[luchipher2007]

simply great!

[CRES2B]

I am reviewing for a certification test and after more than a few years from the classroom, have found this series very helpful. Some explanations have been superior to the materials/lectures I received in college. This is a great resource and the comments about the professor's speech are very petty.

[54uf]

prof thanks for this great lecture. Don't be intimidated by the negative comments. You know, you cannot please everybody.

[FRETWORKER1288]

Those watching from other countries & trying to use offensive words about the vocal accent ,They dont need to look upon here. Its meant for technocrats or wannabes having respect,affinity 4 teachers & the knowledge. Not for mere bastardy,immoral lineage of barbaric humans devoid of basic values.

[himalchulicup]

his voice blasted my speakers

[goodluckpeace44]

very detailed stuff i suppose

[zippo00001]

thank you

[tonyshit80]

The india surely will become great country in future, I just see their contribution to the world without demand any profit to them...

[threelegduck]

praise this mighty spectacle

[rake666]

I have a question for anyone. During the example for the Norton's Theorem,(at around 49:24) when Rn is needed, I came up with 83.05, but the video says 83.4 What am i doing wrong or is the video rounding off something?

I've done the math a few times, and cant figure out what im missing. Thanks for the help in advance.

[Anhe3k]

Must be a typo, the math pretty straight forward.

[shankotte]

thank you professor

[shankotte]

Thank you very much

and greater thanks to profasor

[Tenuto]

You are confusing voltage source vs voltage drop, they are different measurement.

[evensteve284]

I'm having a problem with Thevenin's Theorem. When the load is removed, it is said that there is no current flow through R3, so it can be ignored when calculating the voltage at points A & B. How can this be so? If you put a voltage meter at points A & B and measure voltage, isn't current flowing through R3? How else could there be a voltage reading at A & B? If you measure across B & C, I can see that you could ignore R3. I know I'm wrong but I can't understand why. Thanks.

[tsniit]

When we connect a voltmeter, we assume it to be an ideal device. Then its internal resistance if very high and hence no current flows through R3. In practice there will be a very small current but it can be neglected if the voltmeter is good.

[wyzacre]

Let's say you have 2 buckets - one full of water and one empty. Water doesn't have to be flowing between the buckets for you to measure the difference in volume between them, right? The same applies to measuring the electrical potential (or VOLTAGE) between two points. The +Batt terminal is like the full bucket and Gnd is like the empty bucket. You can measure the difference in ENERGY between the two points (or VOLTAGE) even though there isn't any flow (or CURRENT) between the points.

[Tenuto]

You are confusing voltage source vs voltage drop. AB is V source like a battery any measurement of current will be measured through the internal resistance. If the resistance at AB was still there it would be a v drop across that resistance and any current measurement would be through the resistance at AB.

[evensteve284]

Thanks for this wonderful series. I'm teaching myself electronics with a self teaching text-book and by studying at the library. But this is the greatest help that I've found yet. I'm having a problem with Thevenin's Theorem, but I'll use a separate for that. I want to first say Thank you!

[cozumel29]

very good

[marcossousa0]

Thank you so much for sharing

[amper0003]

No wonder a lot of guys from India are the leading ingeneers in the majority of US Electrical Utilities!

Cudos to the Government of India for sponsoring this project!

[arbornleader]

good

[martinorozco]

Can someone tell me what type of simulator program the professor is using?

[evensteve284]

At 24 minutes and 33 seconds into the lecture, a screen on the professors laptop comes on for a split second that says: "Authorware Macromedia". I think this might be the simulator program being used. The picture resolution is very bad, so I can't decipher what else is on the screen, but it's a strong clue. I too would very much like to know what the professor is using. Perhaps if we are very lucky, the good professor or someone else who knows will chime in with the info?

[tsniit]

Dear All,

Thanks for the nice words expressed about the lectures. The Simulation programm I use is developed by me over the years and is based on Macromedia Authorware. They along with a few Do-It-Yourself kits for learning different levels of electronics are now avaialble for sale from a private company in India. The technology was transferred recently through IIT Madras.

[fofofo19]

thanks for those lecures

[Hchan12345]

nice lecture