Superposition Theorem with example

[@SkDaSoul]

just a small ,mistake, four years later and it is still relevant......thank you so much.

[@christopheredwards4541]

Despite the mistakes, thanks for putting in the effort to do this. Its very helpful, and i love your voice.

[@anasazmayeenzamee2720]

Theres a mistake, Mam . The equivalent resistance for Req = 10II4+5 = 7.857 Ohm :/

[@ajaygarasiya8722]

Yes this is mistak you are right 4||10+5

[@feelmechanicalengineering2214]

Yes bro I was going to say this.

[@kenikerflores5878]

She forgot the other 5 cause its a series onece you connected 4//10

[@anapaola7241]

x2

[@marinabelkina8397]

Thanks for picking this. I already heard that I did a mistake in the calculations, now I know where it is. I was a bit hurry to get it ready for my students before they set the test ;)

[@saharsha1000]

hi..... can you please upload maximum power transfer theorem, tellegen's theorem and millman's theorem .

[@marinabelkina8397]

Saharsha Deep Hi Saharsha, I will do, but probably not now, too busy with teaching new subject...

[@AhmedKMoustafa2]

+Marina Belkina Could you please put the number of the problem that you have picked from fundamentals of electric circuits in all the videos , so, we can go to it in the book ,, Thanks

[@dr.kawasaki7380]

She never did, too busy cooking for the kids, fake teacher lololol, she don't know shit lolol

[@sallauddin1]

By removing a source we create in fact an open circuit not a short circuit. Thanks a lot for techniques though. Very useful.

[@great_India3344]

Your narration is superb. Thank you madam

[@sinkarharshad]

The Final Answer i.e I = i1+i2 = (1.11+(-0.55)) = 0.56 Amp.

[@skin9255]

exactly

[@jomelherras8910]

sin shad correct.

[@زايدأبوظبي]

Yes true

[@johnnolen8338]

@ 9:23 There is an error in the calculation of Req. Req = 10//4 + 5 = 110/14 = 55/7. By current division then i = -2 x (5/(5 + 55/7)) = -70/90. i2 = (-70/90)(10/(10+4)) = -5/9 Amps. By the way, i = -5/9 is the same value calculated by Mesh Analysis. Therefore, the total current in the 4 ohm resistor by Superposition is I = 10/9 - 5/9 = + 5/9 Amps. ∎

[@321reh]

Thank You Marina For a Smooth and Easy Explanation Of Superposition!! I am Trying To Brush up on my Circuits Skills that I Learnt in Electronic Engineering Technology many many Years Ago!!!

[@tinotenda.7]

Above all thank you for the formula..., and for showing us how it is done,...Yr a blessing

[@daniellai6029]

Ignore the mistake , the final answer is 1.11-0.56=0.55A ?

[@mikeck1]

yes i got .54

[@souravpal2436]

right

[@bebarshossny5766]

Great video Why did you stop making these

[@aruqyz]

Thank you very much!! I watched a lot of videos but did not understand! After watching your video I have finally understood!

[@mayorhaggar1275]

Thank you for this video. You explained it so well, and that little mistake was easy to correct.

[@ahmedmohammed9436]

Hey really think you this is really helpful please don't give up carry on

[@andreasmusic1222]

How did you find that current at 5:49? What's the name of the method that said you can take opposite resistance over sum of the two parallel resistors?

[@rikerwilson118]

Current Divider

[@mahamatissa6483]

allahamdallah I`m alrealy Know where was da mistake .. anyway thank u 4 the videos it`s informative .. thanks a lot madam =)

[@pallavichandimani9677]

its really helpful... i learned here... thanku

[@abdykaparkamilov]

There was a mistake or i dont understand. 2.86+5 = ?

[@diguidiannomoko1252]

Abdykapar Kamilov facts

[@tejasvagarwal5151]

what if there are dependent sources do we have to disconnect them too and then repeat the process for them too

[@srikantakumargouda9561]

Thanks for your valuable explanation......😍😘😘😘😘😘

[@TranscendentalMindX]

I just want to be sure. When you calculated for i1, I think you did it incorrectly. Isn't it supposed to be i.k = i.total * (R.opp/R.eq)? In which case i.1 = (1.56)*(10/12.86) = 1.21A?

[@marinabelkina8397]

when you finding i1, you just need to find the portion of the total current 1.56A being going through 4 Ohms resistor. The current divider is I1=Itot*R2/(R1+R2). So you divide it by the sum of resistors, not equivalent resistance. You can simply use Ohm's law to check it, but the solution will be longer.

[@nakamuramatano5779]

Thank you mum.... From Kenya

[@abdelmonemhassan1157]

If I have two voltage sources in the circuit how can I solve it with super position?

[@Sarahricchexo]

yeah

[@mucahidsamildogan6806]

Thanks to video. its very helpful

[@walterwhite2834]

Is this not just Thevenin's theorem, just without creating an equivalent circuit?

[@kamali7292]

This was a great help .

[@mr.z-]

Great work

[@abdullahsh297]

Hello, if the currents i' and i'' are opposite direction , but they have the same current, does that mean the current is equal to 0?

[@muhammadazeemmohsin5666]

Madam when you have found I1 so why you have divided onlu by 14, as I learnt that if we have to find the current on any branch so we have to multiply total current with opposite resistance and divide by sum of that both resistance, if I am right so it might be divided by 20

[@abdelrahmangamalmahdy]

why did you erase the short circuits ? Isn't the current supposed to flow through the short circuit rather than going through the resistor ?!!

[@foxxmulder7524]

Hello...How did you know in which direction the currenst flows?

[@marinabelkina8397]

Well, sometimes it is hard to predict the direction of the current. But usually you just start from the positive terminal of the voltage source and then follow by the brunch. This is like water flow in the pipes. If you have a current source the direction of the current is shown by the arrow. If you can’t predict the direction of the current - you need to guess. If your estimate is incorrect - you’ll get the negative answer.

[@foxxmulder7524]

Thanks for your answer. you have a nice accent, by the way.

[@zlufffacco8783]

Why the 2A need to be a negative value?

[@veovideosxD]

+Zluff Facco because the direction of the current coming out fron the current source opposes the direction of th current stablished

[@zlufffacco8783]

Ohh haha I see, thank you bro

[@Hackerman-1-h6c]

excellent explanation

[@hamzaimtiaz9545]

well done keep it up

[@mamjosag]

Thank you so much for your help!

[@rishavgiri8817]

In first case,when doing the current divider,which 10 ohm is considered?

[@oatmeal42]

The one on the right

[@oliverwijesooriya2067]

Very good

[@themanfromtheeast2048]

thank you very much for this helpful video.

[@aqileffendi7574]

Hope can remake this video Mam

[@aryavart296]

why did u multiplied 10/10+4 with 1.56 as i=v/r

[@muhammadshamyl9182]

She applied the current divider theorem. However, the formula for that is I, = I x R(equivalent)/R,

[@Bishen007]

When you are calculating i2, why is it that the 10Ω resistor parallel with the 4Ω resistor? Shouldn't it be in series?

[@parmanjosan6687]

Yes, it must be in series ....

[@professormeowingtonsphd1326]

Bishen Patel Yes it's series

[@kartikekhatri119]

Nope... There both of their terminals are connected at same place... So it becomes in parallel....

[@Ravi-bw6zl]

Thank you video very help me

[@ashraf9405]

hlo ma'am your explanation is too good nd nd quit easy ....but sometimes i didn't recognised ur language but i visualize what u r wanted to understanding

[@siddharthpaul4192]

thanks. from India.

[@syedimadali9342]

salam... 10 and 4 are not in series they re in parallel..

[@hassanibrahim3521]

i think u made a mistake in the second part of the solution as the resistance 5 ohms will take some current

[@Seyfettin.a]

thank you ms.Marina Belkina

[@Vajrapati4687]

At 9:22 ,10||4+5=7.86 so final answer is wrong ....and correct ans is 5.56

[@harshitagrawal9211]

The digits after the decimal are read individually.

[@AGFansub]

You're the best! :)

[@zeeshanhshaheen]

very nice

[@atharvajoshi3146]

i see a russian teacher .....sold and subscribed

[@nabeelalawadhi6283]

Part-1 is ok, but she did a mistake in part-2 in calculation of Req which should be 2.86+5=7.86 instead of 12.86, then i should be -0.78 instead of -0.56 and last i2 should be -0.56 instead of -0.4. Final result will be i=1.11+ -(0.56) = 0.55 Amp.

[@lawrenceijeh8378]

+Nabeel Alawadhi she added 10 to 2.86 though not 5?

[@nabeelalawadhi6283]

+Lawrence Ijeh yes the correct is to add 5 not 10 :)

[@souravpal2436]

right

[@nabeelalawadhi6283]

Thanks for the video

[@elizarafee7671]

10||4+5=12.86.....hows that possible!!!!!!! its wrong then how could you find the answer?? :/ so much confusing :(

[@veovideosxD]

+Eliza Rafee yes, that is incorrect

[@BS_Mahlombe]

Requ is suppose to be 7.85 from 20/7+5 isn't it ?

[@timelessintel]

+RAS BONGZARES MAHLOMBE Yeah but just correct it and move on with the calculation a long as you understand what you are doing

[@silastarirosimemeza7217]

in calculating the resistance with 2 Amps active 10 parallel 4 +5 is equal to 7.86 ohms

[@Arkadiy93181]

Марина, предоставляете ли вы частные уроки, если возможно, то видео-уроки, например по скайпу?

[@joy-jc1cl]

mistakes were there...but, I loved your accent :-)

[@despair6203]

Thanks for the info. For my country, the wrong person is the teacher because the wrong one before it ^^.

[@harshmishra9259]

thanks a lot. calculation mistakes arent an issue mam.

[@alexanderjack5937]

It's 7.85 NOT 12.8

[@zacharyayaga6661]

Quite informative, a little errors though, that's understandable

[@Kane-ib5sn]

the best explanation on the topic of Superposition-theory TODAY. i like her sexy Euro accent - it stimulates my mind...jokes.

[@geoffreymbugua4963]

You made a mistake when you said you will short circuit the 2A instead it is supposed to open circuit the current source 2A

[@volimsamopare6946]

Thank you!!!

[@RSA08782]

vous avez une faute dans le calcule de Req par rapport au injecteur

[@7assan1996mr]

thank you very much :)

[@sendmenoodlespls7290]

Regarding the equation in the second part to calculate i_2, shouldn't it be multiplied by -1A instead of -2A because the current splits between the two 5 ohm resistors? So the final answer should be i=i_1+i_2 = 1.11 - 0.36 = 0.75. Pls correct me if I'm wrong.

[@Keetmalin]

hey.. the video is informative. but please correct the error.

[@yoditfshatsion207]

thank you

[@sandasailajareddy904]

it will be easy with kvl theorem

[@srialekhya7248]

the answer we are getting is 0.55Amps

[@conred6635]

THANK YOU SO MUCH

[@brd8764]

Studies are a bit tense. I mean one needs to be up to the mark. Otherwise it is present tense. All mornings are good enough to start anything. Also, it is justified always. It is ok to approve ok mornings.

[@angelangel-no3or]

U told that fir current source we have to take open circuit then y u take short circuit.it is totally wrong🤔

[@mahmoudmohammed3526]

tyvm i got the idea (y)

[@canada_krishna]

u are worried about money for no. of views but,people who think ur explanation is correct will be in trouble in examination, plz listen twice or trice before uploading in youtube

[@anoosaham-qui1138]

master :)

[@calort2150]

Ty

[@hussain9300]

Thank you :)

[@Hackerman-1-h6c]

but there was a mistake in calculations

[@muhammadsaqib4233]

thanku

[@hirakmondal6174]

how can u teach us sums with mathematical mistakes..my whole time got cooked up...

[@sneharangnekar4021]

thanks

[@satadhi]

mam u hav a beautiful accent !

[@moinaction]

The set up was right just math error

[@zarintasnim4406]

I have spent my two hours , searching why my concept isnt working , not knowing about the wrong calculation >_< shitttt !!!!

[@maitrireddy2359]

thanq

[@m123u123j456]

Your caption is not very Clear , Your biggest mistake is when you will do something you have to say why you did it .Otherwise it will be not understood .

[@divyanrooney6872]

thanks maam

[@cjharris7960]

i=.56 A is the answer iam getting

[@muhiburrahmanart]

2:07 OPEN circuit not SHORT.

[@zouhairchaki8610]

( 10 // 4) + 5 = ?? !!!!!!

[@gronhom]

+Zouhair chaki 12,85

[@AhmedElkersh97]

thx

[@moazelsawaf2000]

The answer is wrong, the correct answer is about 0.56 amp.

[@fenrirdwight5382]

no ketchup just sauce, voltage sauce.. sorry voltage source..

[@nemplayer1776]

The circuit goes skrrrrrah..

[@AmanKumar-wh8tk]

It's solved wrong, the answer is also incorrect.

[@itscindy9376]

I was confuse Becuase the answer of my calculator about 10||4+5= 7.86 what the fuck this video will make me fail to my subject!

[@ArifHossain-sy2tu]

lol of ur summation.. 10*4/(10+4)+5=7.86 not 12.86 .. othrwise good.. :P