Just so you know. ChemE has some relationships with EE. There are Batteries, computerchips etc... Unless you narrow your chemE to bio or something like that but then you will still have to study EE physics.
I really appreciate this video by a lot specially the part when you explain the polarity of the components in mesh analysis because for a very long time I was mixing then up with KVL and it made so confused for a long time. Thank you very much and I hope for pleasant event for you all the time
Thanks very much for this. It helped me confirm Hafler circuit operation for audio that I had worked out in Excel using just ohms law. Basically the same CCT but, AC generators not DC, and 2Ω and 4Ω res are 0Ω and others are 8Ω(speakers) I did electronic engineering 40 year ago! I then used your matrix method and also discovered that Excel has built in inverse and matrix solving features, I was so happy when I got the same answers.
Thanks for the explanation of the formulas which I felt the most and did not know before and now I can understand through his professional explanation. Great sir.
Thank you Sir ! You explained it very well. Now I have understand how to use the passive sign convention. Once again, thank you! May God bless you more!
at the 11:30 mark u state that + to - is positive and - to + is negative, but it doesnt matter how u use the sign convention. so do u mean i can write in + to - as negative, and a - to + as positive and it wouldnt matter as long as i follow the same sign convention around the whole circuit? Im reading schaums basic electricity 2nd edition and it states that + to - is negative, and - to + is positive.
I'm confused, I know that resistor consume energy, so whenever a current passes through a resistor, from positive to negative, it's create a drop so the sign is negative (-) but you are saying different things that we should asign positive (+) for the resistor when a current passes through from positive to negative. Please I need more explanation because you are confusing me
I used KVL and achieved the exact 28.8v ,in less than 10 mins.However in front of camera while explaining it to students it is a lot more difficult. Excellent tutorial.
I love your videos and presentation. I've watched dozens of them and learned, or relearned a lot. And thank you so much for that! But I do NOT at all like. how you reversed conventions at 20:34 in this video. Using (iB - iA) * 8 ohms while analyzing mesh B (across the 8 ohm resister R2 which falls between mesh A and mesh B). . In writing the equations for mesh A, you used the convention of iA - iB for the current across that 8 ohm resister (down current minus up current). In mesh B you reversed it to iB - iA (up current minus down current) I would argue that to continue the pattern already established, the convention that you yourself established... a more understandable way to explain this should be -1 * (iA - iB) * 8 ohms... thus continuing the pattern "voltage rise (negative), minus two voltage drops (2 - positives)" which then equals zero. The exact same form as you used in mesh A... (-40 + iA2 +(iA - iB)*8). By switching the convention midway through the problem, I found it very confusing Of course your math is perfectly correct... -1 * (iA - iB) * 8 ohms is mathematically exactly the same as (iB - iA) * 8 ohms, but conceptually, it is very different to comprehend
I need examples of nodal analysis for circuits with two voltage sources and five resistors when finding voltage 1 and voltage 2as well as current through each resistor
How come you can't keep for mesh 2 +R2(ib-ia) and for mesh 1 - R2(ib-ia)? *I'm keeping voltage drops from - to + positive and + to - negative. PLEASE HELP test on tuesday
Thank you, next time can you show us how to do EE Circuits matrix with a calculator? I got it anyway. But that will be easier for those who doesn't know matrix.
It is so much easier if you just apply the superposition principles using the Thevenin and Norton equivalents of voltage and current sources. You can almost do it without a calculator. No matrix calculations required!
That's what I thought off the top of my head but could not remember what it was called then I looked up superposition and bugger me I did this at Tech College 40 years ago.
interesting that we act like a current is going in one way and the math still works out even tho its not the way current is flowing at all. very interesting
man so many people explain those methods in such overcomplicated way. Usually they try to figure out the actual way current flows only to ignore it later
i probably made a mistake somewhere in my homework and will get 0 for a specific question because this is electricity but still thanks for the video, helped very well
In this video: watch?v=k5Tlg27JDtc he says when going from - to + you use + because it's a voltage rise. So for the power source you would write 40 instead of -40. Why did he say that? Because what he said makes more sense than what you are saying in terms of going from - to + is treated like a voltage loss since you use - i.e. -40 in this example.
41.5 mins with your instructions are much better than a week asking my professor and him not even wanting to explain!
Thank you!
8 mins in and wow. I wish my professors taught as well as you do. I’m a Senior ChemE student dying in a basic ECE class. Bless you sir
Just so you know. ChemE has some relationships with EE. There are Batteries, computerchips etc... Unless you narrow your chemE to bio or something like that but then you will still have to study EE physics.
This guy is incredibly good to explain complicated things simple. Thank you Jason the Professeur
Awww Thank you so much! - Jason
I've used a lot of youtube tutorials youre the best teacher whether its engineering circuits or Laplace transform or any topic for that matter.
Thank you so much. I didn't understand this at all until watching this video. You are an excellent teacher.
Thank you so much! My electronics tutor has no real understanding of this topic so its good to find a lesson taught so clearly
I really appreciate this video by a lot specially the part when you explain the polarity of the components in mesh analysis because for a very long time I was mixing then up with KVL and it made so confused for a long time. Thank you very much and I hope for pleasant event for you all the time
I’ve been struggling in a mining circuits class and this has helped out a ton!
This saved my butt studying mesh analysis during this online classes
I’m very grateful sir
You saved my exams 🙏
God bless you
You are my favorite teacher, Jason! Great job.
one of the best lecture i've ever seen thank u sir
Thanks very much for this. It helped me confirm Hafler circuit operation for audio that I had worked out in Excel using just ohms law.
Basically the same CCT but, AC generators not DC, and 2Ω and 4Ω res are 0Ω and others are 8Ω(speakers)
I did electronic engineering 40 year ago!
I then used your matrix method and also discovered that Excel has built in inverse and matrix solving features,
I was so happy when I got the same answers.
Thanks for the explanation of the formulas which I felt the most and did not know before and now I can understand through his professional explanation. Great sir.
Thank you Sir you are the best!!!
#RespectFromSouthAfrica
This is actually a model of my homework Problem... it's really helped me...🙏👍
You are good teacher who knows how make student understandable
Thank you Sir ! You explained it very well. Now I have understand how to use the passive sign convention. Once again, thank you! May God bless you more!
You are most welcome
at the 11:30 mark u state that + to - is positive and - to + is negative, but it doesnt matter how u use the sign convention. so do u mean i can write in + to - as negative, and a - to + as positive and it wouldnt matter as long as i follow the same sign convention around the whole circuit? Im reading schaums basic electricity 2nd edition and it states that + to - is negative, and - to + is positive.
Pretty good explanation. It helped me out a lot with my homework.
Thank you!
Greetings,
Jeff
Good job Tutor, This is simplicity out of complexity! You do all!,
I'm confused, I know that resistor consume energy, so whenever a current passes through a resistor, from positive to negative, it's create a drop so the sign is negative (-) but you are saying different things that we should asign positive (+) for the resistor when a current passes through from positive to negative.
Please I need more explanation because you are confusing me
Very Good essential introduction to MESHcurrent or NODEvoltage simple
example matrix
solution ,result analysis conclusion .GOOD job !
At Mesh C :will it be (-20) or (20) in the 1st line as it is going to (+) to (-)..
pls tell me....
Muy bueno profesor, greetings from mexico
How did he get the decimal values at 30:12?
I really understand your tutorials,thankyou so much,may God bless you,you are such a blessing sir🙏🙏🙏
What video do I need to watch to know how to do matrix Ax=b?
Exactly what they teach in Naval A School. Great material.
Men you’re brilliant thanks as the sky 😻♥️🙆🏻♂️
YO man...thxx alot this really helped me with my hw...i was stuck at a place and now i got the answer. Bless you sir
Thank you for posting these videos!
Interesting your my favorite teacher keep it on
thanks so much it helped me so much and the way you explain is so good is brief and precis thanks
You saved me in class! Thank you so much!
I used KVL and achieved the exact 28.8v ,in less than 10 mins.However in front of camera while explaining it to students it is a lot more difficult. Excellent tutorial.
Thanks so much!
Great Videos sir....really enjoyed learning
How to do the matrix on sci cal?
Very well explained with a fantastic pedagogy. Thank you very much.
I don't understand why the first equation had -40. Should it be +40 because it there was a current motion from the negative through to the positive
I love your videos and presentation. I've watched dozens of them and learned, or relearned a lot. And thank you so much for that!
But I do NOT at all like. how you reversed conventions at 20:34 in this video. Using (iB - iA) * 8 ohms while analyzing mesh B (across the 8 ohm resister R2 which falls between mesh A and mesh B). . In writing the equations for mesh A, you used the convention of iA - iB for the current across that 8 ohm resister (down current minus up current). In mesh B you reversed it to iB - iA (up current minus down current)
I would argue that to continue the pattern already established, the convention that you yourself established... a more understandable way to explain this should be -1 * (iA - iB) * 8 ohms... thus continuing the pattern "voltage rise (negative), minus two voltage drops (2 - positives)" which then equals zero. The exact same form as you used in mesh A... (-40 + iA2 +(iA - iB)*8).
By switching the convention midway through the problem, I found it very confusing
Of course your math is perfectly correct... -1 * (iA - iB) * 8 ohms is mathematically exactly the same as (iB - iA) * 8 ohms, but conceptually, it is very different to comprehend
THANK YOU SIR! I understand what you have taught, just having trouble doing matrix
I hope you're not having any problems with the matrix anymore
@@ichigo8607 i hope so HAHA
I need examples of nodal analysis for circuits with two voltage sources and five resistors when finding voltage 1 and voltage 2as well as current through each resistor
How come you can't keep for mesh 2 +R2(ib-ia) and for mesh 1 - R2(ib-ia)? *I'm keeping voltage drops from - to + positive and + to - negative. PLEASE HELP test on tuesday
I have the same query
Thank you, next time can you show us how to do EE Circuits matrix with a calculator? I got it anyway. But that will be easier for those who doesn't know matrix.
Thank you sir for your explanation may GOD bless you
i just hope on ur videos you have thevinin and supersposition technique... thanks for ur help
I'm really confused with your calculations sir ... I don't know how you get voltage rise in all your resistors😭😭
The explanations make everthing really simple. Tkank you very much sir . but can we solve the same with Node Votage method?
thanks, Sir, but I have a question. How can you solve the power absorbed by each resistors?
Is ia equal to i? Thank you~
Professor cheeks is the BEST!
thank you sir I almost went to write my exam without getting this right.
thank you
thank prof. i really love the way u explained it
Thanks from Tanzania
Do we not have to worry about the polarity of the resistors?
Resistors are bidirectional meaning they do not have a polarity, so you don't have to worry about that.
I guess what he did was solely based on the assumption that the polarity of the resistor depends on the direction of the current in each mesh
Sir how about theres a capacitor and inductor in circuits?
exactly my question
Wow this professor has so many experience
so BEAUTIFUL ! awesome content, thanks ^^
Wait, mesh current and kirchoff current are different things?
Thank u sir...it really helpful for my last min stdy
Why do I even go to college....
Yes man.. What they take 3 hours to teach us we don't get it.. When we come here for 40 mins, we get it better
😂😂
Because hiring managers are lazy.
Why not just use rref on the calculator to solve the matrix?
He killed it absolutely
You sir are amazing🔥🔥🔥🔥🔥🔥
I think the indication of the "plus" and "minus" sign are wrong... if I'm wrong please explain it to me. Much appreciate it.
i felt the same..and i am still confused.
Good teaching but I think the voltages in mesh c should have been written out as -(Ic-Ib)6 + 4Ic +20V
shouldn't Ib= 4.75. I got your equation for ib in terms of ic and 20v and I also got ic=0.8
Thank you very much. You are a genius.
Thanks so much!
Solving the equations simultaneously gives wrong answers..
Can someone tell me why
you probably made a math error somewhere.
Thank you v much Sir. Great lesson.
Thank You So Much Sir Jason
It is so much easier if you just apply the superposition principles using the Thevenin and Norton equivalents of voltage and current sources. You can almost do it without a calculator. No matrix calculations required!
That's what I thought off the top of my head but could not remember what it was called then I looked up superposition and bugger me I did this at Tech College 40 years ago.
Does anyone know a mesh-forming algorithm, suitable for analysis of electrical circuit transients (e, R, L, C - not necessarily linear)
This man is so cold 😮!! You dont truly understand something if you cant make it simple and my teacher doesn’t truly understand this
interesting that we act like a current is going in one way and the math still works out even tho its not the way current is flowing at all. very interesting
does it matter if your using conventional or electron flow?
no
Thank you, your’e a super teacher, it’s cristal clear!
Jaap Poldervaart how did you make it all the way to engineering circuits without knowing how to spell?
Thank you sir, but I don't understand the matrix solving skills.
man so many people explain those methods in such overcomplicated way. Usually they try to figure out the actual way current flows only to ignore it later
i probably made a mistake somewhere in my homework and will get 0 for a specific question because this is electricity but still thanks for the video, helped very well
is it the same if I calculate V0= (ib-ia)*8= -28.8V. Then , I change it from minus to plus ?
If the solution comes out in negative sign it indicates that its anticlockwise .
Thank you Sir!
What type of calculator do you need?
I use a TI89 or HP50. Good luck!
View all my Lessons and Courses!
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HOW DID HE GET THE 5.6, 2.0, & -0.80. PLEASE SOMEONE HELP ME, I HAVE A QUIZ ON THIS LATER T_T
just google 3 by 3 matrix multiplication with 1 by 3 matrix. you will find the answer.
In this video: watch?v=k5Tlg27JDtc he says when going from - to + you use + because it's a voltage rise. So for the power source you would write 40 instead of -40. Why did he say that? Because what he said makes more sense than what you are saying in terms of going from - to + is treated like a voltage loss since you use - i.e. -40 in this example.
Thank u so much sir it helped me a lot
This really helped.
Great video
But i didnt understand why you not marked negative sign in mesh 2 8(ib-ic)
As convention goes from neg to post
Please reply
he didn't put negative sign because it flows in the same direction with ib mesh current. you see
THANK YOU... SIR...!!!
thank you so much, you are awsome
God bless you man! :)
Welcome!
Thank you soo much sir
I salute you sir
You are amazing . Thank you
Best easy example
So fun to watch
I like this sir.
Thnx
Most welcome
Thank you sir
Lesson starts at 4:10
Thank me later