Equivalent Resistance of a Complex Circuit with Series and Parallel Resistors
This tutorial goes over an example finding the equivalent resistance of a complex circuit with many series and parallel resistors. We just need to go through methodically one step at a time, recognizing small sections that are simple series or simple parallel between two nodes, and reduce those sections to equivalent resistors, and then iterating again.
This video is part of a full free course on electric circuits. The course covers DC circuits, circuit laws, current & voltage sources, series & parallel resistors, nodal analysis, mesh analysis, and AC circuits.
Links to the course are here:
Website: www.engineer4free.com/circuits
KZread: • Circuits
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Thanks for watching, I hope it helps!
Пікірлер: 91
The full Circuit Analysis playlist is here: kzread.info/head/PLOAuB8dR35ocf9Typ1iX9NRmX0V04UYfQ Thanks for watching 🙌
@Eduardo_Espinoza
Жыл бұрын
I get it but I'm still confused lol So the current is the same for every single component but another video said current can change in parallel circuits. Idk 💀
@Engineer4Free
Жыл бұрын
@@Eduardo_Espinoza The current is not the same in every single component. Two resisters in parallel with difference resistance will have different currents through them, but the same voltage drop across. Check out videos 15-20 for Kirchhoff's laws here: engineer4free.com/circuits as well as videos 21-27 for more examples on current and division.
@rafihaider6439
2 ай бұрын
Finding current and voltage is complex
You've earned a special place in heaven with the invention of the node coloring!
@Engineer4Free
4 ай бұрын
Haha thanks! It seemed like the best way to demonstrate over video 😊
I'd never seen the node coloring before. Absolutely blew my mind when you did it! I'll be using this from now on!
@equiv721
Жыл бұрын
kzread.info/dash/bejne/gIBhyJWKk7CXpLw.html
Thank you for simplifying the lesson so well. One needs not see another lesson on how to calculate complex resistors.
@Engineer4Free
3 жыл бұрын
Glad to hear it!! =)
This helped so much, I had no idea how to figure out which were parallel or in series in a complex network of resistors until this video.
well explained in a creative manner! it was so satisfying for me to see the resistors get smaller in quantity :))
@Engineer4Free
2 жыл бұрын
Glad you liked it!! 🙂
This circuit up there was really amazing. Though my answer was wrong , I was close. Thank you.
Calmly explained, that's great
i wouldnt have done my homework without this thanks mister
your method is great. keep going.
Very well explained!!!
Great video, thank you!
oh my god this is actually perfect THANK YOU!!!
Thank you so much for helping me to understand
Would've loved to find this a year ago. Made something so complex look easy.
This is so satisfying
I love this thank you for sharing
Learnt more from this video than I did in class
Nice Video!
Ok now make a part two showing how to find the current and voltage for each resistor PLEASE
Thanks. Super easy to understand
@Engineer4Free
3 жыл бұрын
Glad to hear that!!
Thank you very much!
Your the best bro❤
Thanks for this effective tutorial
@Engineer4Free
3 ай бұрын
Glad it was helpful! 😁
0:50 - This is the one I was looking for! The formula lol! Even though I already did go through all of these before, forgetting how to calculate and the formula behind it was and will be my biggest problem lol! My memory is not that good enough to recall this one. So watching this part helps me a lot for a forgetful person like me lol! Thanks anyway!
Thanks. Your voice is amazing :3
The color coding is genius.
Interesting !!!very detailed demonstration !!!
My prof told us that always start the calculation away from the source (voltage). Do you still get the same total resistance this way?
Thank you it helped a lot, could you please make a video finding the current in each of this resisters?
@Eduardo_Espinoza
Жыл бұрын
+1 My exact concern!
thank you so much
bro ate the whole circuit haha btw thanks :)
@Engineer4Free
5 ай бұрын
nom nom nom
i wish my life could be unraveled this way
amazing video
@Engineer4Free
3 ай бұрын
Thanks!! Full playlist is down in the description 😁
Is there any rules to calculate the complex resistor, that means series calculate first or parallel
May be in the figure u write correct but in writing part u calculate equivalent resistance is 0.521 ohm.......which will be 1.52 ohm as per figure......plz ans 💫
Thanks
Well done
@Engineer4Free
2 жыл бұрын
Thanks Jacky!
I'm just confused on where to draw the resisters after you add them
Thankyou sir
Please make a video on Norton's theorem and Thevenin's theorem
How will you apply current divide rule on it???
What if the Vs is place in the middle of the complex circuit
wtf you are genious
need help please, how do i know which resistors to combine first? its very confusing because i get different answers depending on the order i combine them
@Engineer4Free
5 ай бұрын
There can get not be one right answer. Just take two resistors at a time. Find two that are clearly in series, or two that are clearly in parallel, and apply the appropriate formula. Once they are combined, reassess, and pick two once again. Note that f you have two series resistors that together are in parallel with another one, you must combine the two series ones into their equivalent before doing the parallel calculation. Only the combination of the two would be in parallel with the third, not either if the two originals. Hopefully that makes sense. I'll try to make a few more similar videos in the coming weeeks
It was litteraly very easy for me (tenth grader)
What are the values of power of all resistors?
Please do some more complex type networks like star and delta connections
@Engineer4Free
Ай бұрын
Yes that would be great for some future videos 💪
How to the same equivalent resistor using Delta star connection?
For me It is the best and most interesting numerical for class 10 physics lover
@Engineer4Free
2 жыл бұрын
Awesome!! Thanks for watching =)
please do AC 3 phase analysis 🥺
Finding R Total is easy. Finding each V and I is what I came here for. 😢
I'm 17 and I finishes this in 2nd attempt😊
@Engineer4Free
3 ай бұрын
Good job!! 👍
நன்றி
damn why is this so easy...
1:34 Why would that be series? It looks like it could be considered parallel
Hello teacher
@Engineer4Free
3 жыл бұрын
Hey
What is equivalent resistence
@Engineer4Free
Жыл бұрын
Ohms law says V=IR, or I=V/R, or R=V/I. A battery of a certain voltage will out out a certain amount of current depending on the resistance it feels between its terminals. Turns out that a bunch of resistors arranged in a certain way can give the same overall resistance as a single resistor. If one resistor gives the same overrllal resistance as a bunch of resistors arranged in a certain way, then they give equivalent resistance. This video shows how to simplify find what the single equivalent resistor is to the initial, more complicated configuration. Whether you have the initial more complicated configuration l, or the single equivalent resistor, the battery will feel the same resistance between its terminals and put out the same exact current.
Ans is 0.33433 ohm
Actual value 1.56 ohm
where's wye and delta transformation 😭?
Ah yes my colorblindness strikes again.. great video though
@equiv721
Жыл бұрын
kzread.info/dash/bejne/gIBhyJWKk7CXpLw.html
@Engineer4Free
Жыл бұрын
Derp, sorry!! With paper and pencil you won't be using colours, it just seemed helpful to illustrate in the videos. Just go one node at a time and eliminate series or parallel resistors systematically 👌👌
🇵🇬🇵🇬,..,
Not too difficult
@Engineer4Free
Жыл бұрын
Great!
bruh
@Engineer4Free
3 ай бұрын
Bruhhh
mmm this was lul