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How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics
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- Опубліковано 11 гру 2017
- This physics video tutorial explains how to solve any resistors in series and parallel combination circuit problems. The first thing you need to do is calculate the equivalent resistance of the circuit which you can use to calculate the current flowing from the battery based on ohm's law. Using the current and the voltage drops across each resistor, you can calculate the electric potential at every point in the circuit which will allow you to calculate the current flowing through any resistor. This technique is useful if there's not multiple batteries in different loops of the equation. Keep in mind, the current flowing in two resistors that are in series with each other is the same. The voltage is the same across resistors connected in parallel. This video contains plenty of examples and practice problems including a current division formula for resistors connected in parallel.
Schematic Diagrams & Symbols:
• Schematic Diagrams & S...
Resistors In Series:
• Resistors In Series - ...
Resistors In Parallel:
• Resistors In Parallel ...
Series and Parallel Circuits - Light Bulb Brightness:
• Series and Parallel Ci...
Equivalent Resistance of Complex Circuits:
• Equivalent Resistance ...
_________________________
Voltage Divider Circuit:
• Voltage Divider Circui...
Current Dividers:
• Current Dividers Expla...
Parallel Circuit Challenge Problem:
• Finding The Current In...
Kirchhoff's Current Law:
• Kirchhoff's Current La...
Kirchhoff's Voltage Law:
• Kirchhoff's Voltage La...
DC Circuits Review:
• Series and Parallel Ci...
____________________________
KCL and KVL Circuit Analysis:
• Kirchhoff's Law, Junct...
Thevenin's Theorem - Circuit Analysis:
• Thevenin's Theorem - C...
Norton's Theorem - Circuit Analysis:
• Norton's Theorem and T...
Superposition Theorem:
• Superposition Theorem
Maximum Power Transfer:
• Maximum Power Transfer...
Physics PDF Worksheets:
www.video-tuto...
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
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From school to University
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I've literally watched 4 of your organic chem videos today before my 8am test. I'm now watching your videos again for my physics at 6pm haha.
@The world of Avatar Im screwed too man. Gr.11 physcis getting to me. 14 hours a day, I feel like i'm in prison. Summer's been hard on me :(
Me but 3 years later lol
Learned more in 30 minutes than an entire semester
He explained in such a simple way that many lectures from the class can avoided :)
We learn these in grade 8 in india .Lol
Damn true 😂
@@Subhojyoti-ls7fb
wtf dude
then why are you here
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I'll try and update you on how well I did.
Took this same test several years ago, and was completely lost.
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update us
How did it go sir?
This is pretty random but I keep your physics videos playing whenever I feel meh about solving physics. You working through the problems step by step gives me the energy to do the same; slow down, read the question and solve carefully. Thanks for your videos man.
[EDIT 2 YEARS LATER PASSED WITH A B!] You’re going to be the reason why i’ll pass my final tomorrow, thank you so much!
I got finals too. Trying to figure this out cuz my instructor full of shit .
did u pass
ravi kiran rly 1 year later lol.
@@theuntormented6560 no
So how was the final?
for some reason i was never taught to redraw the circuit at all. I just watched this video and another one where you both redraw the circuit and my mind is blown omfg. it makes everything so much easier to understand
Exactly, I'm like wtf. My prof just told us to simplify the circuit in our head instead of redraw it. I'm like wut?
Absolutely NO redraws are necessary!. Find total resistance from right to left, back to the source voltage. Then figure the total current by Ohms law. Now, going from left to right...figure your voltage drops across R1 and R6. Then subtract those voltages from the source voltage. Divide the 15 volts by R2 resistance to get 1.5 amps, which is half of the total current. The other 1.5 amps goes thru the rest of the circuit, or just divide the 15 volts by the total resistance of the three resistors in the far right part of the circuit. Bingo, problem solved people!
"thought" not "taught" ;D
How did you solve without redrawing??😱😱
@@adabujiki it's taught
man you made my basics on this topic sky-rocketing. I couldn't even solve a simple circuit now I'm able to do some circuit problems. thanks, isn't enough for you man
I was confused as hell and then I watched your video and now I feel like a professor🤣 Thank you so much! Your videos are always great and detailed!
Man you're whoever you think you are, no youtube tutor comes close not even an inch closer the gap is too wide. See how I understood this equivalent resistance effortlessly. I've never regretted subscribing to your youtube channel and I will make sure my course mates subscribe to your channel as a form of appreciation to the amount of work you put in just to make us understand seemingly complex topics easily. Because almost all my course mates did not understand this topic when the lecturer came to deliver to the class.You'll be the reason why i will graduate with First Class. thanks once again! Gracias
For some reason this has conceptually been one of the hardest topics for me to grasp at the beginning.. thanks for helping clear it up!
You know it's funny on how every time I get stuck in any subject except of Bio,you and your videos just step in and save me. You are like a super hero.
Thank you very much sir,you are a life saver,not sure there Is a way to repay you.
your silky smooth voice and calm delivery makes understanding physics SO MUCH BETTER
refreshed my physics from 50 years ago in 10 mins - THANK YOU
Since we take this in high school. And assuming you were 16 then. You are 68 now. Of course I believe 50 years is rounded.
@@damnit8904 uhhh. okay? lol
@@Kodiak73 stfu
Wow the second example was almost exactly like one of my tricky homework problems and it helps a lot! Thanks!
like my home work too
I gotta test tmr fam. Last minute study gang whassup 🤣
This is a great video, thank you for your work. It's impossible for me to understand how someone can give thumbs down to this tutorial.
Dan Probably someone who failed their exam
His style isn't orthodox
Probably due to the lack of an upper class British accent.
@@felixcat4346 true 🤣😝
THANK YOU for bringing physics to it's knees
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i can only say wow on how i advanced from zero to hero after this video, god bless you tutor love you from the bottom of my heart;)
I appreciate your videos so much. Just started learning RC circuits in lecture this week and I didn't understand anything, but after this video I feel so much better about solving these questions! Thank you!
Nice job. Have not done this since the 1990s, but you brought it back to life with clear and concise explanations. Good job. Thank you.
In physics class, to combine parallel repressors, we have been using the formula 1/Rt =1/R1 +1/R2, but that doesn't seem to be in your video. I'm still kind of struggling to understand circuits as a whole, and it would be very helpful to me if you could explain that rule/ its relevancy to circuits. The right hand rule also has been confusing me as well.
I love your videos, they've helped me loads in AP Chem and in physics. I'm really glad that there are people out there who make videos to help others, rather than click-baited videos.
1/Rt = [1/R1 + 1/R2] and don't forget it's to the power of -1
You only combine them when u are trying to figure out the current encompassing the whole device (circuit).
Once you do that you can troubleshoot your device with a multimeter and see where its failing you.
didiroxforever that method still applies, in the first question he did he said the total resistance for the the two ten ohm resistors in parallel was 5. He got that by adding 1/10 + 1/10 then finding the inverse of that answer
I didn't understand anything at school but after this video I feel like a wise 😂😂 thank you best teacher ever.
You do such a great job explaining multiple ways to solve the same problem! In earlier lectures you showed how to do it by summing the resistors in series on right side and then solving the parallel resistors and now you explained the alternate way to solve to find the current through the middle resistor by using the potential difference between two voltage points on either side of the middle resistor and solving for the current through the middle resistor and then subtracting that current to find the remaining current flowing through the resistors in series on the right side of the circuit! Just what I needed explained clearly!
Im a 10th grader in Turkey! Your videos always help me before exams when im trying to digest all that information. Love you ❤
Thank you bro I didn't attend class in which this was explained and i was left behind and i don't wanted to ask my teacher to explain me the whole xoncept just because i didn't attended the class you saved my life
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Organic Chemistry has helped me a lot than my teacher since i entered college. Thanks dude!
I always come back to this video. As I progress through class more and more things in this video make sense. It’s all here. Excellent material here. Thank you.
im currently preparing for my jee, it was helpful your just the best at the subjects and even better at explaining than our indian teachers...❤
I gotta test in 1hour and I'm watching a your videos now
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your electrical engineering videos are the reason why I am going to pass my first electrical engineering exam
Thank you so much I like how you resolve series-parallel problem . I could not finish my homework without your video. Thanks a lot
ily! You solve the problem that has been bewildering me for the whole day! My life would be much easier if I discovered your channel earlier!
The current flow across 4ohms is not 0.5765amp. It is 1.729Amp. Finally that you’ve corrected it.
Insanely helpful, put my physics professor to shame honestly.
Got confused about the current you wrote down towards the end. At 28:09 Should the current going from C to E be 1.7295 and not 0.5765 which is the current going from C to D to E?
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I believe you had it correct you are just slightly confused. The current from C to E from the top going right and down is 0.5765A (this is the current going through the 12ohm series combination which is the 3 and 9 ohm resistor combination). But the current going the 4 ohm resistor (diagonal section) is 1.7295. I hope this helps!
thats what i thought
@@omarzouiten4006 yeah so the guy wrote it down wrong.... i was looking for a comment that talked about this lol
thank you man frfr. my teacher, and from reading the comments, a lot of other teachers cant teach as good as you. keep doing doing what your doing man, you got my like and subscribe.
Actually very good video for all physics students
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Bro is carrying online school, bro knows calculus, discreet,electronics and wait what's his channel name again
You are a really good teacher. Are you some type of technician or engineer of some kind?
@ 28:13 , it should be 1.7295 A that runs through 4-ohm resistor right? Why is it the same as current is 0.5765A??
😩been struggling heavy but sheesh boy am I glad I found this video💯
To compute 2 resistor in parallel with different value just multiply the Numerator then add the Denominator and Devide the value that you get in 15:31 minutes 12 * 4 = 48 (Numerator) then 12 + 4 = 16 therefore 48/16 = 3ohms
here's a linus tech tip, continue the great work thank you
If not organic tutor, I don’t watch any phy/maths videos. Tnxs a lot
indeed u made me understand it greatly with a trust to pass it come to final exams
Just saved me, have a test tomorrow on this, didn't understand a thing prior to watching this🐐❤️
this is the definition of how to be a hero in minutes
thanq for helping us....but i wish the audio quality means sound shall be much higher (if i keep full volume in my pc it was not audible
Thank you so much, I was able to understand part where I had a mistakes.
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I don't understand the lesson in class but with your help and now I can solve the questions...
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Nice!
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Hi sir, i am sure the calculation is wrong at 28:14, the current passing the 4 ohm resistor must be 1.76. It cannot be 0.576 because then the total current won't be 4.615, and so you violate KCL, and we calculated the current across the resistor is 1.76A
Yeah he mixed them up. But switch the current for i1& i2 respectively and you'll get them right
For anyone struggling, I found the vid about combination circuits by Step by Step Science to be sooo much easier to understand
Great work! when calculating the currents at each resistor, i get lost due to the resistors not being labelled.
Thank you very very much my teacher don't explain like you
28:11 I think you made a mistake assigning the current as 0.5765amps when it should be 1.7295mps.... Correct me if im wrong however:)
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I love ur videos and now I understand all or somethings about physics
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Sir to find Potential at F we are moving from A to F by this way it will be Va - Vf and Vf will be -2
There is also another way you could solve the current going through the 3 branches @ 28:00 , you could find the equivalent resistance of r1 and r2, then use that equivalent resistance and the current to find the voltage once you have the voltage you could then find the individual current of r1 and r2.
How do you find the voltage of one with the equivalence of all resistors
your videos have helped me so much, thanks again for sharing your knowledge
For the first time in my life i understand what electric cuircuit is
We love you the organic chemistry tutor
Great explanation! Would love for any tips for someone like me starting up anything helps! Cheers.
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You made this concept way more complicated than it actually is!!
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@@davidmorris1335 suck my weeener, there is another simple way to calculate voltage drop!!
Great video bud really helped me. Also you sound like Mark Wahlberg lol.
You are seriously a life saver. Thank you.
This dude sure knows a lot.
wow you made my mind blowing and now i can solve any curcuit problem
Finally, I understood it in less than a minute! Thank you!
I wish you would use electron flow. But I think these are helpful. Thank you.
Thanks teacher very much I appreciate you!!!!?
Why is I1 = It * R2/R2+R1. How does he relate that formula? 26:40
Everything else is really nicely explained, thank you
Current divider equation
this was way more complicated than it needed to be
Dude has helped a bunch of us. Takes a special type of person, like yourself, to trash the method, of a helping individual, without adding anything to back it up. Take that negativity else where dude. Its not needed here.
Sir you have saved my life🙏🏿
the best explanation, thank you!!
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Nice thankz for your effort....its really help me lot...thank you so much....
Wish there where harder questions explained, these are easy for most to do but the ones I have to do for school are way more complex then these given questions
With the first example, I'm confused how KVL can still be followed there HAHAHHAHAHAH
I've recently discovered your series. I did so because I have an opportunity to test for a position in an Aerospace company as an Electronic Service Technician. This position will be responsible for diagnosing electronic systems involved in industrial controls. My degree in Electronics is 46 years old and although I have been involved in diagnosing and repairing complex electronic systems in Automotive, I feel out of my element moving into industrial controls. I have some familiarity with their systems and PLC controls due to my experience with the same company as a CNC machinist on purpose built CNC equipment. Having said all this, I am having difficulty in sorting out an order of lectures in which to study your content. Is there some kind of indexing system so I can know what lectures to study in what order? Thanks
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Sir it was great but you should have taken all the values of whole no.s .
The method is pretty simple tq
Wish I watched this when I was still in high school