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@danielliu60
@danielliu60 6 ай бұрын
holy shit you're actually the goat if anyone is reading this FUCK PHYSICS 142 WITH KEITH BERLAND AT EMORY UNIVERSITY
@Carbocation.
@Carbocation. Жыл бұрын
how to find 𝜏(time constant) if the RC circuit have more than one capacitor and of course 3-4 resistors
@thespritgamer6953
@thespritgamer6953 6 ай бұрын
Use Thevnis circuit problem
@خالدخالد-ص4ص8ن
@خالدخالد-ص4ص8ن 2 жыл бұрын
بالعربي
@alemayehuyadete9475
@alemayehuyadete9475 2 жыл бұрын
Well done
@yarenkaya7872
@yarenkaya7872 2 жыл бұрын
Beautiful explanation You could also find the voltage difference between the plates of 1st capacitor by creating a Kirchoff loop including 6ohm, 2ohm, and the 1st capacitor. Setting the eq. Vc-6*1-2*0=0 Therefore, Vc = 6V On the other hand, thank you for this nice video, sir!
@mounirzouhari6453
@mounirzouhari6453 2 жыл бұрын
you did this wrong . y0u need to find R equivalent first
@pycharm708
@pycharm708 3 жыл бұрын
Thanku sir for this good explanation
@seyedhusseini6762
@seyedhusseini6762 4 жыл бұрын
really bad explanation
@seyedhusseini6762
@seyedhusseini6762 4 жыл бұрын
waste of time
@lemonlemon4435
@lemonlemon4435 4 жыл бұрын
The title said hard , but was a piece of cake
@roberttshitenda7878
@roberttshitenda7878 4 жыл бұрын
Good morning sir, please help me understanding of total horizontal and vertical, RL parallel to capacitor?
@behelpful5010
@behelpful5010 4 жыл бұрын
why didnt you solve it for any time t
@subhradeepmahata9470
@subhradeepmahata9470 4 жыл бұрын
Excellent video!
@ukhinmaungnyint4006
@ukhinmaungnyint4006 4 жыл бұрын
Starting capacitor မှparallel resistor အကြောင်းသိ့ရှိ့ရန်
@billwilliams6338
@billwilliams6338 4 жыл бұрын
ALAN GLODOWSKI without the LOAD, how much current in amps can a 4700uf hold store with a power supply DC voltage at +450vdc? the 4700uf filter cap will charge up to +450vdc but how much current is the 4700uf holding storing? What formula can I use to calculate how much current the filter cap is storing in amps?
@ChillPillDyl
@ChillPillDyl 5 жыл бұрын
You need to trace across currents in the same direction for EVERY loop to prevent issues. If you trace clockwise in one loop, you need to trace clockwise for every loop. It just makes life easier and prevents errors.
@enki7952
@enki7952 5 жыл бұрын
this is pure bullshit! what about tackling it like a real physicist instead of forming speculations? seriously what do i do with this method as long as i don't know the natural behavior of the circuit???
@itsme-jx9xt
@itsme-jx9xt 5 жыл бұрын
how did you get 103? I have a similar question: An aircraft is flying south west at 200 m/s.There is a crosswind due east at 70 m/s a)draw the vector diagram and the resultant vector b) calculate the magnitude of the resultant vector c)calculate the angle to the resultant d) state the magnitude and direction of the resultant vector. I need help with this homework assignment. Thank you.
@bohoburns3655
@bohoburns3655 5 жыл бұрын
Thank you, this helped a lot!
@marsmartiny5534
@marsmartiny5534 5 жыл бұрын
how do you find the direction (in degrees) at which the aircraft should fly so the wind causes it to travel at 60 degrees due East?
@himanshusemwal3393
@himanshusemwal3393 6 жыл бұрын
Hey 6 ohm resistor just got short circuit ,how can you find the current in it
@abhisingh1836
@abhisingh1836 6 жыл бұрын
Sir,this solution is really really great. The concept of Shortcuiting the capacitor initially is new to ke. Thanx.
@mansimratsingh5220
@mansimratsingh5220 6 жыл бұрын
Sir your solution for Current at t=0 is not appropriate. It should be 16/7 A in 2 ohm resistance. Plz reconsider. Regrets if I m wrong
@renzotl56
@renzotl56 5 жыл бұрын
Mans QB it takes path of least resistance. So it just go through the 2 ohm resistor
@ratshitpartners5757
@ratshitpartners5757 6 жыл бұрын
the capacitors would have a hard time filling with their annode connected to their cathode.
@merhawihadush7997
@merhawihadush7997 6 жыл бұрын
I think you're wrong sir!! b/c capacitors behave open circuit to dc source not short circuit.
@YouKnowMeDuh
@YouKnowMeDuh 6 жыл бұрын
No, they act like shorts at t=0 and act like open circuits after a long time since no current can flow through them anymore. The current looks like exponential decay to zero at t>=0 when charging. Look up the graphs for this if you need a visual aid, it helps.
@jrohit1110
@jrohit1110 6 жыл бұрын
WTF! Dude! i thought that you were gonna calculate the voltage as a function of time....XD!!!!
@lordvoldemort346
@lordvoldemort346 4 жыл бұрын
Yeah I came here for that wanted to see how would he deal with complicated differential equations or is going to explain some new method to do it
@guillermodiaz2773
@guillermodiaz2773 4 жыл бұрын
@@lordvoldemort346 they are called trick my friends
@lordvoldemort346
@lordvoldemort346 4 жыл бұрын
@@guillermodiaz2773 you mean to say that I tell him on to solve 12th grade maths and he speaks the table of '5' And it is a trick Wow what an awesome trick I was looking for something else he just solved the easiest case of the problem and that is a trick Omg
@newman3126
@newman3126 6 жыл бұрын
thank u prof Alan ....i found that very useful 4 me ....plz can you help me WITH recomended book or student book with more example for resistors and capacitors connection in DC
@magnoliazone6
@magnoliazone6 6 жыл бұрын
thanks for sharing this is very helpful.
@magnoliazone6
@magnoliazone6 6 жыл бұрын
thanks for sharing this is very helpful.
@kritiktejaswi283
@kritiktejaswi283 6 жыл бұрын
Example to Acha liyr h smjane ke liye but .. Concept ka band bna diye h ... Jo phele bar capacitor padh ra ho wo na dekhe .. Other wise Jada doubt pak love man mai ar apna ho Jan re ho wo v concept kharab kar loge ...
@kritiktejaswi283
@kritiktejaswi283 6 жыл бұрын
Example to Acha liyr h smjane ke liye but .. Concept ka band bna diye h ... Jo phele bar capacitor padh ra ho wo na dekhe .. Other wise Jada doubt pak love man mai ar apna ho Jan re ho wo v concept kharab kar loge ...
@tugaric
@tugaric 6 жыл бұрын
Is there a way to calculate the time constante of such a circuit ? A simple circuit would be Tau = R*C .... but when you have multiple R and C components how do you calculate it ?
@puranjays8
@puranjays8 6 жыл бұрын
4 months late, there is thevenin equivalent circuit which deals with the exact concept you were looking for.
@joshuaronisjr
@joshuaronisjr 7 жыл бұрын
Why does the current get split up that way? Since at the bottom junction there is no resistance between the battery on the left and the the junction, wouldn't all the electrons want to go there? Isn't it almost like a short circuit? (This question might make no sense). On a different note, can someone recommend another book besides the art of electronics for learning this? I find it really interesting, but I kinda wish it had more of the physics behind it to explain it. Also AOE is a great book, but its really dull looking, I think I'm mostly gonna use it to reference to things I don't understand. So yea, any suggestions? Thanks!
@anfaltheam1166
@anfaltheam1166 7 жыл бұрын
شكرا استمر في العمل الرائع Thank you so much
@user-qi8hd8ip5m
@user-qi8hd8ip5m 7 жыл бұрын
Good
@vincentradley6546
@vincentradley6546 7 жыл бұрын
Thanks a lot! Very good video and very useful.
@electricresonanz1158
@electricresonanz1158 7 жыл бұрын
Thank you for this video! I learned something important!
@caperucitaroja2480
@caperucitaroja2480 7 жыл бұрын
Very well explained.
@lovinlifegirl95
@lovinlifegirl95 7 жыл бұрын
Thanks for explaining!
@DragonsThe
@DragonsThe 7 жыл бұрын
if there is power supply in the middle circuit does we need to total voltage to the first loop.
@azimclark2078
@azimclark2078 8 жыл бұрын
Why do you have a negative value for the voltage
@caiozowyecamachocabral5413
@caiozowyecamachocabral5413 8 жыл бұрын
t>0 ???? fuck yah
@aracelygil9891
@aracelygil9891 8 жыл бұрын
You work this circuit pretty weird
@technicalinfo7614
@technicalinfo7614 8 жыл бұрын
great sir
@RafaSyed
@RafaSyed 8 жыл бұрын
hello, how can you draw the phasor of V(R) and I(S) in the same dimension although they're of different units?
@lotamole
@lotamole 8 жыл бұрын
Interesting and effective method for adding vectors. Thank you!
@x15Lovex
@x15Lovex 8 жыл бұрын
great job explaining this, very simple to understand, thanks!
@conbagnes
@conbagnes 8 жыл бұрын
Thank you very much for this! :)
@Kirthikvasan
@Kirthikvasan 8 жыл бұрын
capacitir as wires new trick learnt
@jjay11a
@jjay11a 7 жыл бұрын
hey did u ever figure out why the cap looks like a wire at t=0
@darkseid856
@darkseid856 5 жыл бұрын
@@jjay11a I know it's two years late . but it's because at t=0 circuit is *just closed* so the charged that got *accumulated* in capacitor is almost zero .
@Twenty_Four_7
@Twenty_Four_7 8 жыл бұрын
i thought capacitors behaved like open circuits in a dc source
@finalfantasy7820
@finalfantasy7820 8 жыл бұрын
This is what i'm wondering too.
@spoderman15
@spoderman15 8 жыл бұрын
that is when they are fully charged
@spoderman15
@spoderman15 8 жыл бұрын
For example, he uses open circuit for the caps at 3:32. He is only concerned with the first one because it disconnects the rest
@finalfantasy7820
@finalfantasy7820 8 жыл бұрын
Spoder Man I had stopped watching before coming there. Now i watched the full video, thank you for the information mate.
@ZoeTheCat
@ZoeTheCat 8 жыл бұрын
Only after ~5 effective time constants. Prior to this, current will be exponentially decaying in various loops while the capacitors are exponentially charging. Once the caps are charged (dV/dT ~0), then current is no longer flowing and Caps do indeed act like OCs. This is referred to as the "Transient Solution." and is usually not important other than to LEARN what is going on. AC Source designs seek to achieve the more important "Steady State" solutions. These topics are used to design filters (low pass, hi pass, band pass, notch, etc). But the systems can get so messy, that computer simulations (SPICE, MATLAB) and other freq response programs are used to evaluate the SS response.
@brendasmith2944
@brendasmith2944 8 жыл бұрын
yet another video that doesn't outline power dissipation! yet another disappointment!