I like how savage this dude is. "I don't like to memorize anything so I derive it". This guy is the realest in the game.
@nibzlegend997 жыл бұрын
Makes sure everyone got a cheatsheet too
@collinseib7 жыл бұрын
Really good instructor, very nice work. I thought I should point out a mistake at 9:10 mark he adds the two inductors, it should be 11/3H, not 8/3H, as the left hand inductor is 3H not 2H.
@lyricalbrain27439 ай бұрын
Exactly
@ebarbie501610 ай бұрын
This is is a great example on how NOT to solve simple RL/RC circuits. When you have a dependent source parallel to a resistor that carries the dependent current, the two are equivalent to a simple resistor... I took me 5 seconds to get the solution just by typing a key sequence into a calculator w/o having to write anything down...
@joejoe2221hzi6 жыл бұрын
Love how this guy doesn't rush through explanations and shows every step !
@haikal16802 жыл бұрын
2021 and im still watching his video
@bossmanbossman-iw7qc Жыл бұрын
I’ve learned more here in 30+ minutes than I have in a month of lectures… amazing. Thank you so much! Just something about this lecture video that makes everything feel easy… unlike my professor, who messes up 3x per lecture and loses my attention.
@SpoodrMin Жыл бұрын
curious, what school? I have a similar situation
@josuegialis81465 жыл бұрын
You are amazing! I wish I was in your class. Thank you for saving me a couple days before my final. Your videos continue to help people to this day!
@averagegamer14629 жыл бұрын
on 9:30 it should be 11/3 not 8/3, I believe, no biggie.
@gaurisethi58087 жыл бұрын
yes it is 11/3 = 3.66
@ronricogarcia32165 жыл бұрын
you're right. He got confused...
@marwansalah49106 жыл бұрын
Mr.Zahi your videos have been saving me through out the semester thank you very much
@ahrar99197 жыл бұрын
awesome video clear conceptualization
@hammamziadeh40934 жыл бұрын
Your teaching skills make it easy for students to understand difficult topics. I admire your teaching skills sir, wish I had you as a teacher.
@suhailasami28448 жыл бұрын
at 9:30...shouldnt it be 11/3?
@samynashabeh7 жыл бұрын
Yes, it should ..
@sarba855286 жыл бұрын
Yes you're right. it should be 11/3. I see that too
@Daniel-rm6hj7 жыл бұрын
Amazing, thank you so much!
@adilbekzhumabekov83035 жыл бұрын
Sir, YOU ARE THE BEST!
@huntar44ntokzin8 жыл бұрын
where could one acquire that cheat sheet?
@fagbemitunji9957 жыл бұрын
the vc(o) could have been found easily by souce transforming the 10v source and the 6ohms resistor to give a current source in parallel to the 6ohms resistor. then we can apply nodal analysis since all the element will all be in parallel and will have a common voltage i.e in dis case vc(o) will be dere common voltage
@sajjadulhaq41367 жыл бұрын
wrong solution ..there should be 11/3
@realaxis25626 жыл бұрын
sajjad ul haq u can chk kzbin.info/www/bejne/nprTnJynd6eNbs0
@richie16035 жыл бұрын
Soldier attitude , dig it !
@meghb.50037 жыл бұрын
Could you make a video for the case when we have two switches?
@aaronrasmussen168 жыл бұрын
Very helpful thank you!
@gaurisethi58087 жыл бұрын
finally concept got solved , thnku sir :)
@Janakiram_9994 жыл бұрын
Hi
@alaazedan37948 жыл бұрын
amazing thank you
@kesavareddyshiva92067 жыл бұрын
at 9:31 it should be 11/3 not 8/3 bcz 3+(2/3)=11/3.i think so sir
@muhammadsabih48967 жыл бұрын
Thank u so much :) made me clear :)
@user-ry4ee4ev5u5 жыл бұрын
감사요..덕분에 좀 이해할수있겠네요
@univerlearn4 ай бұрын
Thank you, you made the question easy
@g-xills70106 жыл бұрын
which pen you have ?
@awesomestuff88196 жыл бұрын
Thank you! You're awesome!!
@angelcuellar66135 жыл бұрын
You saved my ass, thank you!
@julesmendoza30967 жыл бұрын
sir in the last part, i got confused because when I tried to calculate 1M *(2.5/8000) what I get is 3125 and not 312.5
@nikai_ryosuke_21994 жыл бұрын
What are the pens are you using?
@ohmakademi7 жыл бұрын
thank you so much...
@rezashah915 жыл бұрын
thank you. it was great...
@ridwanhusainishraq3 жыл бұрын
Product over sum which formula does it hold? Didn't get that
@shibadhamija43057 жыл бұрын
superb sir ..thnks
@jadhajali28048 жыл бұрын
"just the equations are uglier ! " lol hahahhaha
@yosefkashkoul34726 жыл бұрын
so nice pop hehehehehehe thanks dr zahi haddad it's seems like your an arab so شكرا كتير اهم اشي البوب هيهيهيهيه
@tebogo47168 жыл бұрын
Helpful indeed!
@eric-jd1yl7 жыл бұрын
sir i think I1 at 0 different than IL at 0 so the equation for I1 (t) you need to find I1 at 0 then put it in the equation?.. im a student.. just asking so mind me if im wronf
@wilmiecostiniano5947 жыл бұрын
i also agree
@muhammadahmad968 жыл бұрын
Sir, you are the Best!! May Allah(SWT) bless you!
@vtgaming92048 жыл бұрын
+Muhammad Ahmad ALLAAAAAAHHUUU AKBAAAAAR
@muhammadahmad968 жыл бұрын
Bro, do you know what Allah u Akbar means? It means "The Lord is Great" Don't you think that our Creater, our Sustainer, is the greatest of all?
@muhammadahmad968 жыл бұрын
+VT Gaming Ohh.. come on. Be a little respectful. He is not just my God. He is your Lord too. We all have the same God. And kindly think open mindedly without the media's propaganda influencing you. Read Quran... you ll surely dind numerous scientific facts mentioned 1400 years ago.. facts that have been found only very recently by scientists. some of them are: 1.The expansion of universe. 2.The fact that Sun is not stationary. 3.Moon has no light of its own. 4.Embryology 5.The sending down of Iron from Space. 6.Mountains as pegs. 7.The Ozone layer. 8.Space and time theory. 9.How honey ia made (The scientific method) 10.The Big bang ..... and numerous more. thank you.. i hope you ll enjoy reading Quran.. :)
@parkerflop8 жыл бұрын
May Allah forgive us and guide us and save us from the fire.
@vtgaming92048 жыл бұрын
Muhammad Ahmad Lol, i'm not going to sit here and debate fiction regardless of predictions it has made, i'm stating that it's cruel and one evil religion to follow. Nostradamus, if i've spelled that correctly made many predictions about the future, he was not religious to my knowledge and we don't see us calling him god due to the fact that he predicted world war 1, 2, and the build up to world war 3 with accuracy down to the president's years before any of this happened. Is he a god now?
@harikrishnakande42926 жыл бұрын
excellent
@loghmanhashemi24807 жыл бұрын
at first thanks a lot for good and nice training but i have a question why you ignored from 8 ohm resistor when t>0 ???
@lwallace7587 жыл бұрын
When the switch is open, there is no current flowing through the 8 ohm resistor. There for the 5A source and the 8 ohm resistor can be ignored from the circuit. Hope that helps
@loghmanhashemi24807 жыл бұрын
thanks very much bro
@hananabd22248 жыл бұрын
sir, i hope you make vedios for electronics :( you lectures so helpful :D
@LazyMan14536 жыл бұрын
What I should do to find i sub 1 if i can't find i sub 1 in terms of i sub L ?
@amrnabil45087 жыл бұрын
very good
@ahrar99197 жыл бұрын
it should be 11/3H not 8/3H
@Peter_19868 жыл бұрын
"Cheat-sheet". Haha, clever.
@tylerwilson22806 жыл бұрын
ty
@bencam67207 жыл бұрын
thank you
@mohammedferoz41787 жыл бұрын
thank you so much
@BelayBirhaneАй бұрын
But i am confused cause dor t greater than zero inductance will be open ckt
@cook1emnstr1766 жыл бұрын
@4:42 ish...Maybe I'm wrong but when you combined the 2nd set of resistors you forgot to multiply the (24/11) by 2 on the top. The resistance would be ((24/11)*2)/((24/11)+2) = 4.3636/4.1818 = 1.0434 ohm...for real though...please let me know if I'm wrong here...
@OmErgeVU5 жыл бұрын
You aren't trying to find the voltage there, you are trying to find the current.
@DaLeR0807 жыл бұрын
Окси форева!
@RohanNair325 жыл бұрын
The fornula for RC is Ke^-t/ RC. Using the formula for RL i was able to get the first example correct without derivation but i get like e^125t when doing the RC example with the formula. Is there a reason for this?
@richie16035 жыл бұрын
Im confused on the same thing , using the formula too , tricky !!
@ergikaso91322 жыл бұрын
Maybe you found the R wrong there because there is a dependent current source that cannot be killed
@peruboyjose5 жыл бұрын
30:30 shouldn't that be (2.5/8k)/1u?, which would make alpha 3.125*10^-10?
@loaikhaseeb12514 жыл бұрын
Can I get the sheet as a pdf ???
@andrewsaba21586 жыл бұрын
You sum inductors in series ... 8:54
@anugrahsingh13657 жыл бұрын
L is 11/3
@preme43716 жыл бұрын
I dont get t, if yhe general form of RC circuit is v(t)= Vo e^-t/RC. Then you never get the final answer as yours.
@cansnyollar50985 жыл бұрын
The formula you are talking about assumes there are only a capacitor and a resistor but in his question you also need to account for the current source's contribution. The formula you are talking about also comes from simple 1st order diff. eq. I'd suggest you to stick with this proffessor's method
@davidemelu11428 ай бұрын
where can get the cheat sheet?
@SaadSheikh-uw6ew8 жыл бұрын
helpful indeed but you thought that was 2H inductor but that wasn't 2H LOL
@oguzozum8874 жыл бұрын
sir you sound like mark hamill (joker)
@micaelascanlon87616 жыл бұрын
forever wishing my lectures were just as rich as his youtube videos my professors are so useless.
@farawayskies6 жыл бұрын
Can I get that cheat sheet :D
@tahaadel17187 жыл бұрын
?what this guy name
@shashankpandey19666 жыл бұрын
its for dc or ac ?
@abdallahmelhem93583 жыл бұрын
If i see a switch then it is a DC?
@loghmanhashemi24807 жыл бұрын
what the students doing in class men????????
@albiaclifordjanernib.50728 ай бұрын
3+⅔=11/3 for Inductor total equivalent
@mynoobmw37 жыл бұрын
where can i print this cheat sheet off? :(
@mattdouglas89007 жыл бұрын
You don't need that exact one... Google it to find others, or better yet: learn some diff eq. I would suggest Paul's Online Math Notes as well as PatrickJMT here on KZbin.
@mynoobmw37 жыл бұрын
Matt Douglas I alrdy took ODE. I just want to find one for reference just in case I need to look up something sometimes
@nibzlegend995 жыл бұрын
@9:35 should be 11/3 not 8/3
@Janakiram_9994 жыл бұрын
Yes
@bellalalakshmidevi97147 жыл бұрын
you can tell in telugu zs21q`
@raihanjami29366 жыл бұрын
Tmi dhon er pora porao
@sonlightstickbukucu3 жыл бұрын
am i stupid?
@sridharchitta73212 жыл бұрын
RC circuit time domain “The voltage across a capacitor cannot change instantaneously” is a statement one finds often in textbooks on circuit theory which discuss the application of a step voltage to an RC circuit. Most students memorise and apply this in circuits without understanding the physical processes involved. It will be useful to learn the operation of charging a capacitor using a unified approach to electrostatics and circuits. Electrostatics and circuits belong to one science not two. To learn the operation of circuits it is instructive to understand Current, the conduction process, resistors and Voltage at the fundamental level as in the following two videos: i. kzbin.info/www/bejne/ioXXpWVul5aXj9E and ii. kzbin.info/www/bejne/bnO0fpKurJeFnNE It is not possible in this post to discuss the charging of an uncharged capacitor. During the first few nanoseconds after switch ON, while the surface charges arrange themselves, there is no electric field E_cap and fringe field because there is no initial charge on its plates; it is as though the capacitor was not there - as though there were a continuous wire with no break in it. The last frame References in video #1 lists two textbooks 3 and 4 which discuss in detail with a series of diagrams (sequentially arranged) the physical processes in charging a capacitor. RC circuit frequency domain The current (sinusoidal steady-state) in a capacitor is due to the resultant electric field E_net (resultant of the applied field and an opposing electric field, the fringe field). If the capacitance of the capacitor C is made large, then the fringe field does not build as fast as it would have if C were to be smaller. With a large C, the charge sprays on the plates do not result in developing a large voltage in a given interval of time as evident from the capacitor voltage-charge relation Q = CV. The fringe field is smaller and the net field consequently is greater. Therefore, at a fixed frequency, the current increases as the size of the capacitor is increased. The current also increases as the frequency is increased. So, we say it passes higher frequencies of applied voltage. If the frequency is made smaller, the fringe field builds very rapidly and in the limit when it is dc, it blocks the applied voltage. It is not possible in this post to discuss in more detail current in capacitor circuits and capacitive reactance. The last frame References in video #1 lists textbook 4 which discusses these topics in more detail using a unified approach and provides an intuitive understanding of reactance. It also describes with sequential diagrams how the current leads the voltage across the capacitor by 90 degrees. RL circuit time domain When a magnetic field inside a solenoid varies with time, a curly non-coulomb electric field is observed both inside and outside the solenoid. A coulomb electric field results and we note that an attempt to change the current in the coil induces an emf in the same coil and makes the coil sluggish to respond to current changes. It is not possible in this post to discuss the production of induced emfs in inductors in detail. The last frame References in video #1 lists two textbooks 3 and 4 which discuss in detail with a series of sequential diagrams the physical processes to explain the operation of inductors and RL circuits. RL circuit frequency domain The existence of a sinusoidal current resulting from the application of a sinusoidal voltage to an inductor is a characteristic of the non-Coulomb electric field that is proportional to the rate of change in current causing a changing magnetic field. The current is a result of an opposing Coulomb electric field, which is a result of polarization by the non-Coulomb electric field associated with the changing magnetic field, and the current is a consequence of the resultant field of the applied field and the Coulomb electric field in the inductance coil. Inductors find applications as filters in power supplies and in resonant circuits in tuned amplifiers. If we increase the “frequency” of the input voltage to an inductor, the “rate of change” of the input voltage and the applied field is “greater than” the rates obtained with applied voltages at lower frequencies. At low frequencies, this causes a smaller induced opposing electric field and emf, therefore, large currents will flow within small intervals of time in the coils of the inductor. In the limit, if the input is a dc voltage, the current will become so large that the inductor will burn out. In an inductor, the opposition to the applied voltage which is changing the current is instantaneous and so, the current can only follow after the applied field has overcome the opposing emf. In an inductor for sinusoidal currents, the current lags the voltage by 90 degrees if the inductor is pure, and less if a resistance is in series with it; the inductor fights before current flows. If an inductor weren’t to fight, you will get energy for free!