Series and Parallel DC Circuits Intro | Equivalent Resistances of Resistors Reduction | Doc Physics

[@johnsullivan1606]

You are the best at explaining Physics concepts. I'm a math and physics tutor and your videos have been a lifesaver. While I can solve the problems, I'm horrible at explaining the concepts behind electricity. I've always referred my Physics students to your videos.

[@yeseniaflores4655]

Finally someone who teaches physics without being boring! Great video thanks

[@DocSchuster]

Yes! And if you apply a voltage to that (large) setup...no current flows through any of them (obviously!).

[@verysadgrill]

i started giggling while watching this. my roommate looked over and was confused because this is physics, not jimmy kimmel or such... haha. thanks, it was incredibly helpful.

[@DocSchuster]

nenasolamor Yay! Physics is phun!

[@LucidMeditation]

same here bro.. except no one saw.. 😂😂😂

[@mandezadamz4556]

I think I fall in love with your explanation with the motivation and fun in it I really loved your videos now I completely understood it all thank you sir (y)

[@CODENAME]

u taught me more in the first 1:59 secs then my instructor taught me in 1 month

[@rasibafridi]

I always skipped this thing in books. Thinking series as the summation and parallel to be the inverse of the summation of the inverse. AND NOW THIS IS JUST TOO HELPFUL!!!! THANKS DOC! Hehe

[@mccoychow4316]

This is how you introduce Dora the explorer to physics

[@cristyrgrox]

You remind me of my Physics teacher Mr. Clevengar. It's somewhat intimidating...yet respectable.

[@jhayaaronc.9573]

I didn't watch it all the way through, but NOW I DID, AWESOME VIDEO

[@nicholaselias8542]

awesome derivation thank you!! So much easier to understand how it was derived than to memorize

[@SuperChristianMiiworld]

Doc: "You thought I was gonna tell you? Figure it out!" Me: "I CAN'T!!! You won't hear me!!" :'( xD

[@PerrinTan]

PHYSICS IS LOVE PHYSICS IS LIFE

[@kaziboygamer]

oh my gosh why just why

[@mrcastor9093]

It'd be cool if Doc would make some videos about electronics and basic transistor configurations. Greatly explained and even his personality makes it easy to follow up the info presented.

[@abdul1355]

And here is "Dora The Explorer" teaching Physics.................Thanks man u teach in a very inventive manner.

[@justanotheruser101]

Thank you for making it much harder to understand without any numbers

[@mdlvc]

You made my day today with this. Thanks so much for this lesson!

[@NkemUgo]

You are simply the best!!!!!

[@sathyawadis]

Answer = current :)

[@lamyasms4656]

I figured it out and you still yelled at me 😂😂😂

[@gh2110]

And u keep me laughing 😂 And learning.. keep them coming

[@Aslan1Khan]

intrusting video .... hats off for him

[@haiderrehmanbutt720]

I'll take my headphones off.

[@okdok3742]

8:43 so v1 v2 v3 are all basically Vbattery, thats the voltage so that same number is used along with the right resistor amount to figure out i1 or i2 or i3

[@syedhamza1966]

always feel fresh and learn more through your instructions thank you for that

[@gixaw]

i like this man.

[@haaahaaai]

You dont know how much i appreciate your help . Thank you sir . btw i didnt puse the video 😆

[@gh2110]

This guy is great” I going to tell you I didn’t understand until this video’ I shit u not” After ur R1 and R2 I could take them out and use Anything” thank u sinsay”

[@adelineang5236]

Great help! Thanks!

[@patrickholcomb9628]

wow. that's why i didn't learn it in school...over complicated the equations. kinda like the teacher already know all the answers to the equations, how to augment the equations and giving all the information at the same time to somebody who is just seeing the equation for the first time... very cheerful though :-/

[@barbarawalker7176]

That's why teachers should be recycled every year because they forget how to teach they assume everyone is on the same level 🙄

[@pokerater4463]

ok so i paused n my ans is current remains same in these 3 resistors...

[@vivekthakkar2701]

u r doing a great job man... ty

[@manicpixiedreamgirl7930]

I guess the fact that resistors in series increase resistance corresponds to lengthening a single resistor, and resistors in parrallel is like increasing the cross sectional area of a single resistor which you also mentioned would decrease resistance (in a previous video). With respect to the infinite resistors in parallel discussion. Would no current flow through it because it is divided into infinitesimal small amounts between all the branches? Why would I_total not just flow through the branch with the smallest resistance and skip all of the bigger resistors?

[@DocSchuster]

1st q: no current would flow through each resistor, but finite current would flow through the infinite number of them, 'cuz zero times infinity is 12. 2nd q: GREAT question. There is a classic economic explanation of this effect, actually. I can't find a ref to it now, though. Think of it as a seven-lane highway next to an outer road. In order to maximize car flow, some people will always drive on the outer road.

[@Selyucida]

+Suzie Q First of all, excuse the bad english Perhaps is too late for you, you might be already knowledgeable, but to anyone interested Imagine you have those multi contact devices where you can connect lots of things, well. regarding your second question, if you connect say your washer which has a big cable with low resistance to flow, it is not like you cannot connect something with a smaller cable like a tv or your phone charger at the same time... The current to feed all the devices is there, right? It just cant skip the bigger resistors, why? because you have already provided a path for the electrons to flow, say minus and plus when working with batteries or hot and ground in some electric instalation at home... every device connected represents a load. And they will be charged while the battery has the potential to do so. You may have probably heard that you cannot connect that many devices at the same time in a contact, and you will find the answer in your own words, in parallel resistance is like increasing the cross sectional area, so the more devices or resistors or loads you connect into a circuit being fed by the same source, will drain the required amount of current they need, you add more and more devices until the overall resistance is so low that you will cause a short circuit, burning your equipment or breaking some fuses at home. Say its an ideal world and you cannot have short circuits damaging your equipment, then you can add resistors or devices until the source of voltage gets depleted.

[@BrooksSeanRobinson]

this is awesome, thanks!!

[@KingKong-gq4iz]

Hello Doc Schuster I liked your enthusiasm in this video. It would be better if you focus more on the conceptual aspects in this video. Thank you.

[@pidoj.8623]

you need to used defferential equition to solve answer

[@xxsandy111]

subscribed for life ;)

[@erosmumung8806]

Is this working in ac circuit or ac generaor ?

[@ashvafia]

Thank you so much!

[@pokerater4463]

ok again i pause and my ans for 2nd challenge is voltage that remains same in next three resistors

[@MikesGoAcademy]

?I guessed they would have the same current but I am not sure this would be the case

[@JokuRandomPoju]

Hmm, where i go to school, we use U instead of V for volts, so U1 U2 and such. I mean isn't that what the ohm's law says? U = current?

[@ShoncayPlays]

In your case, U=voltage

[@GB-dj9wb]

pretty sure U is the symbol for potential, and in our case were always measuring (and can only measure) potential voltages, so yeah U=voltage in our case.

[@Andywantsanswers]

lmao!!!! I really like this video, I started laughing and now everyone in starbucks thinks im crazy! # Nice job

[@maryamsheikh1387]

Wait, don't resistors oppose current flow? So why is the current same across all resistors in a series circuit? I don't get it.

[@DocSchuster]

Lovely question. Evidence for resistors opposing current flow comes from putting an additional resistor in series - the current will decrease! But you'll understand your second question better if you think about what current means.

[@dillonberger4036]

1:26 Doc loses it.

[@dillonberger4036]

at 1:19 Doc almost loses it

[@tooba5299]

i started giggling at the beginning

[@victoriouszen7771]

great instructional video. why can't our teacher explain things this way? ridiculous. thanks.

[@naderhumood]

Vedio is perfect but a pretty fast. ....

[@rken100]

lol!! pause figure it out great videos

[@marissascarbro629]

He sounds like Drew Monson! 😂

[@sunshinelovely15]

You make it complicated then it is

[@dillonberger4036]

You make grammar wrong.

[@slomyou]

please tell me

[@AzizPrince007]

I said intensity 5 five times already !! xD

[@Elouaii]

"Oh shoot!" hahaha.

[@Truth_Seeker1202]

Drama Queen. He even beat Dora the Explorer

[@PureHealingquotes]

Damn , funny

[@lila7826]

You sounds like something dude.

[@bobbyreginald6312]

first two minutes gave me autism