Parallel and Series Resistor Circuit Analysis Worked Example using Ohm's Law Reduction | Doc Physics

[@vz07mk]

Well I wish there was a grading system for teachers on KZbin, paired to a function to filter by grade. This way we could immediately bypass all the wannabees, time-wasters, and just crappy instructional videos and go directly to highly efficient, knowledgeable, and entertaining instructors such as this gentleman right here. Congratulations on the delivery, you're awesome and I hope you teach for a living.

[@DocSchuster]

Danny MacDonald You're really nice! That would be a good system for students. Suggest it to youtube! I am a teacher by trade, in fact.

[@vz07mk]

Doc Schuster Hey Doc...do you have any videos on thermodynamics ?....phase changes, steam tables etc ?

[@DocSchuster]

Danny MacDonald You bet! Check out my video index. I love thermo!

[@DocSchuster]

Loving Indians goes without saying! If that's not immediately obvious, you must not know any!

[@richardrobinson7645]

Doc Schuster awesome vid mate, do you have any calc vids?

[@jazcatraz1568]

It's crazy how much easier you have made me understand this topic much better and efficiently than my professor at a university did in a semester. Thank you.

[@wb8ujb]

I was taught OHMS LAW when I was a child by my father. He wanted me to get my ham license. I've found that problems like this become so much fun to figure out. I don't get enjoyment out of many things, but this is one. I absolutely love your teaching style Doc, hat's off to you.

[@DocSchuster]

Thanks for your support. I love these problems, too. You have a certain amount of freedom, but then everything works out in the end!

[@adil2174]

Doc Schuster how did u get 3? help me pls

[@endustsyn128]

7:14 ; he only calculated 1/((1/5)+(1/30)+(1/10)). Since the formula for calculating parallel resistors is (1/R total = 1/R1 + 1/R2; when R1, R2,.... are all parallel resistors). So put that into a calculator and u get 1/(1/3) which equals to 3.

[@chickennugget3362]

Similar story with me, although I was the one who wanted my ham licence. My dad happened to be a senior electronics engineer for a big company so he taught me all I needed to know. I got my ham licence at 14.

[@martinkuliza]

As a child i got enjoyment out of 3 Flavoured Neapolitan Ice-Cream (Choc, Vanilla, Strawberry) Covered (and.. I mean fucking drenched) in Ice magic Mint Choc topping I mean... Ohm's law is pretty cool as well but Ice Cream in chocky topping............ Ohhh it's a bit better

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You know how to begin a video.

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[@haydenmcdow7130]

I have to say, this is the best explanation of circuits I've ever watched. I'm a senior in AP Physics right now and I've been struggling to understand what was even going on, and this video broke it all down so that anyone could understand these complex problems. Thank you a lot and I will be sure to recommend your videos to all of my classmates who may be struggling.

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I REALLY LIKE THIS GUY HE MAKES PHYSICS MORE DELIGHTFUL THANKS DOC

[@r.4259]

Far Ai it's easy as hell

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So...basically...i love your teaching method. It keeps me laughing while i'm understanding and absorbing the material. It's great. I appreciate this a whole lot more now.

[@DocSchuster]

Thanks, man!

[@DocSchuster]

Thank you! I appreciate your feedback, and I will keep posting!

[@davidmahoney1722]

Learned more in the 24 minutes that it took me to watch this video than I did from my professor this semester. Thank you.

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You are the only academic youtuber which i can actually sit through and watch a video that is longer than 10 minutes, and actually learn what I came here for plus more. Thank you SO much!

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I am watching this video at 3:17 am for my final this morning at 9, and this guys enthusiasm kept me awake the entire time, and trust me I never stay awake during any of my profs lecture, they bore me to death

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[@DocSchuster]

I did one! Just make sure you search with Kirchoff (two f's). Thanks for your support! Enjoy.

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[@tinkbday]

Thank you so much for this video. My AP Physics teacher is terrible at explaining things and not a friendly, helpful person to go to for help at all, so I've been trying to learn the concept on my own. I haven't been able to grasp it until I watched your video so thank you for posting such a wonderful study aid.

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[@lennonmorales976]

this 24 minute video has taught me more than all of my lectures on this subject combined. Thank you so much!!!!!!!!! now time to cram for this test in two days

[@davidporter1299]

This video was the switch... That closed the circuit... Which flowed through a resistor... Inside the light bulb... Over my head. At least as far as the equivalent resistance in parallel resistors is concerned! ;) Thank you so much for the help Doc!

[@DocSchuster]

David Porter HA! Glad it helped!

[@MWJJohnson84]

I went through an electricians union apprenticeship for 5 years. The second year, we had to work with so many problems like this. I believe if I knew you had videos like this, I would have had a much easier time. I struggled for so long, and this video showed everything and explained everything in detail, and your voice isnt monotone, annoying, or hard to understand. Thank you for helping out this brain that has a hard time understanding anything lol

[@SabeloMathe]

I live in England and couldn't find and useful videos from over here to help with physics but this helped so much, thank you.

[@EDude82]

And then... In only 24 minutes and 5 seconds. Everything I have been learing in physics for the last week or so was explained... You my friend... Are amazing... Your a great teacher! Thanks a ton for your help!

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This was super helpful man! You're a way better teacher than most who work in high schools! Thanks a ton

[@ObscureNerd4Life]

Probably one of the most thorough problem explanations I've ever seen. Bravo Sir, Bravo.

[@brandyligocky7059]

This was so helpful. My professor did a similar problem in class but left out a lot of the explanations. I am so glad that I found this video.

[@knowmankind]

I started in electronics somewhere around 1968. I do ok at Ohms Law but this guy is really good at explaining the basics and it is easy to watch and understand. Sir you get A+

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This is literally the first time I wished there was a 5 star rating system on KZbin cuz this guy deserves waaay more than a sub and a like

[@zhurs-mom]

i learned more in these 20 minutes than what the teacher in zoom tried to teach for 3 hours

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This video is by far the best I've seen for circuit analysis !!!!!!!

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You are my hero. My physics teacher just cannot explain so thank you.

[@DocSchuster]

Thanks, Anne. I hope I can live up to your expectations!

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Ashtyn Greenstein sure #InterestingElectrical

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I enjoyed this and understood it much more now than I did back in physics class

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This is the first time I've ever understood what voltage drop was and what stayed constant when solving for voltages and currents. Thank you so much!

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Great Video, Doc! wish more teaching was done like this :)

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you have taught me more than my physics teacher wow thank you so much

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This may be the only video I've seen that educates just as well as being comedy gold. Well done.

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ive been stumped by this for days and now i think i know why i wasnt subtracting the voltage drop from the total voltage thanks! you explained this way better than my shitty textbook.

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[@DocSchuster]

Thanks, yo. I try my best, anyway.

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[@edwardarakelyan9807]

MATE!!!!! You made it so easy to understand :) always struggled with this. but thanks to you I think I can find my way around it. Cheers...

[@DocSchuster]

I'm so happy I could help. Thanks for your kind words!

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i really liked his videos so much that i started watching all his videos.his teaching method is really helpful. before watching this video i saw a lot of videos bt i was not able of understanding this bt after watching this i became skilled in this and i could even help my frndz in their probs.thnx 😊😊

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[@DocSchuster]

You are so welcome! Thanks for the kind words.

[@akt67]

Im actually learning! trying to study for my advanced ham licence and its difficult making sense from just reading notes. Keep it going Doc! Thx

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Lasagne? Like the food?

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[@pasteltiara]

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+mylobage let's discuss it over the next few weeks

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I’ve taken tests and failed them, I was trying to do the biggest equipment’ Until I saw ur videos, you took me to the smallest thing I can imagine’ ah resistor. Thank you so much, u were born to teach.

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so much work for a dollar :/

[@DocSchuster]

Vorrtekks These are hard times!

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He didn't get the dollar. It took him longer than the allotted 15 minutes.

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EXACTLY WHAT I WAS THINKING

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This video has heed me so much, I think i've seen it 5 times over the course of three years now. I am so thankful for its existence.

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Thanks a lot mate:) you actually make physics so fun.

[@DocSchuster]

I love it! I'm glad you're having fun, too.

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Doc Schuster Unfortunately my homework still doesn't make sense to me. However since I only have to combination circuits like this for extra credit I'm not worried.

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You're infinitely better of a teacher than my college physics professor. Thanks a lot!

[@DocSchuster]

The Moon Babies Did you divide by zero? That's more of an insult to him/her than it is a compliment to me. But..thanks?

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lost it at anarchy meter - what would be unit of measurement for such a device?

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+Steve Smith probably some derived unit of human entropy/stability.....don't ask how that would be measured

[@DocSchuster]

You are very kind! Good luck, and never shy away from hard work.

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[@DocSchuster]

I'm glad you liked it!

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I literally watch this video every time I have to write an exam on electric circuits. You make the topic so easy

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I would have ended the video with a dollar smacking that table! BOOM!

[@DocSchuster]

***** That's a solid ending! I should ask you to design the punchlines for my videos!

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10:54 the principle of diarrhea!

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[@dedskin1]

you dont need a calculator to calculate that its 1/R= 1/ (1/5 +1/30 + 1/10) now you introduce a technique called common divider , its the biggest divider , for this case its 30 ..like this 1/R= 1/ (1/ 5 x6 + 1/30 +1/10 x3) = 1/ (6/30 +1/30 +3/30) = 1/ (10/30) , so you can delete zero's and it looks like this 1/R= 1/(1/3) now 1/R = 1/1x1/3 , 1/1 x 1/3 = 1/3 so its 1/R=1/3 , now you can delete 1/ cuz its on both sides and what you are left with is R=3... only thing you needed there is a technique called multiplying by common divider , essentially to make numbers even you find the common divider so that you can add different dividers like 1/2 +1/4 + 1/8 its the same thing as 4/8+2/8+1/8=7/8 ... judging by the numbers used and how they all add up nicely i suppose you are meant to use that technique.. i was never good at math , i failed badly finel years exam , but at least i know how to add up those numbers without calculator :) i didnt even know that i still remember doing that in school

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This is the single best Electric Circuits video I have ever watched. Not to mention you're a pretty funnny dude!

[@parker5951]

This video made me more confused than I already was

[@DocSchuster]

This is just a worked example. You should watch the one called series and parallel DC circuits intro - it might help.

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That's how to hook someone in to watching your videos. You explain stuff super interestingly, and I hope you make more

[@GamerCainey]

you didn't solve in 15 minutes :P

[@TerryLangTechnicalConsulting]

tick tock. That is based on the murphy law of statement v. minimum practical outcome degeneration. Wherein a 15 min problem = 22.5 minutes to solve. A simple 1.5 : 1 ratio is applicable as the reality laden expected outcome v. original statement.. Another example would be like a half hour lunch break will always take 45 minutes. (30 x 1.5 = 45) This equation was originally formulated by murphy while he was having a good day, the ratio may actually have a weighted outcome value averaging of 2.7 : 1. Wherein a 15 minute problem will take 40.5 minutes to solve. The plus side of this is it is ok for your half hour lunch to take 1 hour and 21 minutes. Ex: 30 x 2.7 = 81 See how critical thinking skills will help you in your day to day. : )

[@DocSchuster]

Terry Lang It is most excellent to have a name for my temporal failings!

[@TerryLangTechnicalConsulting]

Doc Schuster We all work against the clock...Doc. I'm with ya, not against ya. I hope you're not using (Terry Lang), as the name...hmmm. I meant to prove that by making up that rhetoric concerning Murphy. But seriously, Doesn't every 10 minute project take 27 minutes ? LOL "Murphys Law of Statement v. Minimum Practical Outcome Degeneration." personally, now, after saying it for the second time. I like it. : )

[@TerryLangTechnicalConsulting]

Doc Schuster I've done some more real heavy thinking : / on this, and I will not surrender this to Murphy. I copyright this written law as Langwich. A term derived of My name, language , languish, and a sandwich. Langwich, pseudo intellectual property of Terry Lang 2014. now it's legal. ; )

[@DocSchuster]

Nice. Now I'm wondering what type of sandwich was on your mind that could be worth a dedication.

[@T-townAZ520]

god bless you man!!!!!!!! i have been struggling so much with series parallel circuits until i came across your video. thank you so much.

[@superdawson1231]

How did he get 3?

[@BUUWRz]

bmx4lif3 Add the 3 resistors by 1/R1 + ... then the answer will be 1/3, reciprocate it = 3. Yay

[@jeremykua8525]

+Martin Andrew Marc Ben Cool Story dude, can't believe you actually carried out your own investigations and questioned a calculator manufacturer. And learned how to evaluate the decency of a calculator (i still have my BODMAS theorem and 12x table in check, everything else i admit, i use the calculator!)

[@jeremykua8525]

+Martin Andrew Marc Ben LOL, "Digital Motor" and "CINETIC" seriously?? Sounds like your mathhood were full of scammers. Right, keep the calculations coming

[@garyabbot4659]

Martin Andrew Marc Ben Thanks for the explanation.

[@garyabbot4659]

Very good. Still a bit crazy for a total 2 day newbie but I also learnt stuff. never give up right

[@lisztresurrected9438]

Thanks. Studying for a job interview. Appreciate the ease of understanding and the good attitude.

[@salvadorjimenez8733]

All i gotta say is, what a waste of paper. Next time, just flip it over! good video

[@humphreiy]

the paper blots. marker pen,.

[@joednkj]

IF ONLY ALL MY TEACHERS WERE AS LIVELY AS YOU ! Thank you sir!

[@thesickbeat]

You're hilarious.

[@erikamarquez346]

can i just say thank you so much. i have been trying to find videos to help me with circuits and how they work and the calculations fit and im grateful i found your channel

[@kinza7549]

i srry u didnt get ur dollar bc u went over 15 mins

[@terryspreier4366]

I have never understood Ohm's Law like this. I can't wait to go back over the notes taken from your video. Thank you.

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lmao anarchy meter..

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I wish teachers wouldn't take things so seriously, and be more like this guy haha

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Why waste my time for one freaakin dollar

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I have been watching many of your physics videos lately, and I just wanted to say that I appreciate what you are doing. Thanks!

[@impaledm4936]

Watched multiple videos before this one and none of them worked but this one did, you did a really good job on this, even though it was seven years ago, thanks.

[@xoxoxoifyify]

I really really really hope that I watched this when I was 14 years old when I had my science exams.. now I'm already 20 and in Uni, and I finally figured it out all thanks to you!!! My kids will go on to benefit from this I guess.

[@DocSchuster]

xoxoxoifyify That made me smile. Thanks!