Circuit Analysis: Crash Course Physics #30

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  • čas přidán 27. 05. 2024
  • How does Stranger Things fit in with physics and, more specifically, circuit analysis? I'm glad you asked! In this episode of Crash Course Physics, Shini walks us through the differences between series and parallel circuits and how that makes Christmas lights work the way they work.
    --
    Produced in collaboration with PBS Digital Studios: / pbsdigitalstudios
    --
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    Facebook - / youtubecrashc. .
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Komentáře • 606

  • @crashcourse
    @crashcourse  Před rokem +6

    We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App!
    Download it here for Apple Devices: apple.co/3d4eyZo
    Download it here for Android Devices: bit.ly/3TW06aP

  • @patrickmayer9218
    @patrickmayer9218 Před 11 měsíci +59

    Just in case anyone like me was confused at 3:15, she did multiple steps in one go. She did (1/3) + (1/5), which is 0.5333, and then used algebra to set R equal to 1/0.5333, which is 1.88

  • @freya3858
    @freya3858 Před 7 lety +1449

    *has flashbacks to year nine physics where I blew up an ammeter by connecting it in parallel*

    • @Deathlock-wz6qr
      @Deathlock-wz6qr Před 6 lety +10

      aPiece OfPi lol😂😂😂😂😂😂

    • @angelstarfire
      @angelstarfire Před 5 lety +3

      Lol

    • @olive7831
      @olive7831 Před 5 lety +39

      I once blew up a microwave by putting a pencil in it

    • @at9328
      @at9328 Před 5 lety +15

      @@olive7831 One my brother put a chick-fil-a sandwich bag (which is lined with tinfoil on the inside). Though he stopped the microwave in time, just seeing the microwave zap this bag like 5 times with blue electricity is pretty scary.

    • @taani
      @taani Před 4 lety +2

      Noice, very noice

  • @kolbeowen3052
    @kolbeowen3052 Před 4 lety +355

    She says”resistance” or “resistor” 88 times! I counted.

  • @ruiningwang1644
    @ruiningwang1644 Před 7 lety +612

    I recently got pretty good at watching multiple series in parallel. : D

  • @ssssssssssssssssssssssssss5503

    I just wanted to let you know that this series carried me through this year of physics. My physics exam is in two days, I am truly grateful for what you have done. Thank you.

  • @Bitsmap
    @Bitsmap Před 7 lety +45

    If I had this kind of help years ago when studying electronics maybe I wouldn't give up.

  • @viancagoosen3391
    @viancagoosen3391 Před 5 lety +12

    OH MY WORD GIRL THANK YOU SOOOOOOO MUCH!!!!!!!!!!!! After three years of physics in school I FINALLY understand electric currents!!!! Explained in a fun and easy way that could never before be broken down to me like this! I love it and sent it to my whole class! Thank you so so much!!!!!

  • @rideabike979
    @rideabike979 Před 4 lety +89

    "You should appreciate what you have done."
    I havent done anything you did all the work for me.
    "You can learn so much more."
    Please no.
    "It wasnt that hard was it?"
    PLEASE STOP-

  • @Kristine.baltazar
    @Kristine.baltazar Před 7 lety +331

    This is one of my favorite physics videos that you guys made. It really helped me to understand this concept. Thank you!!!

    • @eirnyerinugha3984
      @eirnyerinugha3984 Před 6 lety

      Winson and Kristine i

    • @davidbedolla3941
      @davidbedolla3941 Před 6 lety +3

      holy moly I didn't know anything about circuits till now and I have a test tomorrow this video came in so clutch. Thank you.

  • @shinigami052
    @shinigami052 Před 7 lety +21

    Watching this gave me anxiety from circuits classes. College gave me PTSD. For sure I'm going to have the "OMG I missed a test or didn't do my hw" nightmare again tonight.

  • @BlueyMcPhluey
    @BlueyMcPhluey Před 7 lety +92

    best video so far, very clear concepts explained in a way that wasn't drowning in incomprehensible math

    • @Sparton646real
      @Sparton646real Před 6 lety +3

      I prefer the Incomprehensible math to be honest....

  • @andrewholmes1058
    @andrewholmes1058 Před 5 lety +10

    Your diagrams (and condensing them down as you go) has helped me A TON to work through these and understand them on a scale that "Whiteboard Math" doesn't always do. I would love it if you guys had dedicated practice problems where we could pause the video.... work through them, then continue on. Even one per little section would be great!

  • @k4rg0d00d13
    @k4rg0d00d13 Před 7 lety +6

    As a DIY guru who specializes in fun lighting setups using batteries or super capacitors, I found this video to be probably one of the most helpful videos in the whole crash course family!

  • @Seth25r
    @Seth25r Před 7 lety +12

    As a 1st year electronics student in college, this is a great re-cap of all the things I'd needed to pass the math parts of the test. Other comments point out a math error in an animation, but the way it's explained is spot on. After going through the course, this whole episode did a great job of putting all that information into about 10min. I'm impressed really at how well Shini is able to present it all. Thanks!
    P.S. I had an amazing teacher in highschool for my physics class, so I want the crash course team to know that my praise comes from someone who's had a high bar set for you all. Great job!

  • @mugwerimollynasanga6666
    @mugwerimollynasanga6666 Před 10 měsíci +1

    number 1 i love her speed and accuracy, you go girl!

  • @zacharywilson2657
    @zacharywilson2657 Před 5 lety +286

    Her: Saying a lot of stuff about resistors and Current sand voltage.
    Me: Struggling to understand.
    Her: See, it's really simple isn't it?
    🤦‍♂️🤦‍♂️🤦‍♂️

    • @xtzyshuadog
      @xtzyshuadog Před 5 lety +10

      That's because a fourth of your lines aren't even in English,they're emojis

    • @Paprikaah
      @Paprikaah Před 5 lety +4

      Actually it is simple

    • @MonaeJohnson
      @MonaeJohnson Před 4 lety +7

      The example she used in that part was really simple. Very simple actually, it made me wonder why I thought this was so hard at the time I learned it. LOL

    • @sneakerhead6625
      @sneakerhead6625 Před 4 lety

      Zach Talks Back this is me

    • @sneakerhead6625
      @sneakerhead6625 Před 4 lety

      i understand it but it’s still a little bit confusing

  • @takudhewa5779
    @takudhewa5779 Před 6 lety +3

    This helped me 10* more than my actual physics lessons like I know everyone says this but for the past 2 months I havnt understood circuits but after watching this video (with a few pauses) I know nearly completely understand the maths behind partaken and series circuits

  • @JosephVFX
    @JosephVFX Před 7 lety +254

    Sorry, small mistake at 3:14 - third line should be R_eq = 1.88Ω, not 1/R_eq.
    I feel like there should be some sort of pre-release that allows the public to catch mistakes before the videos are published.
    (Otherwise, these videos are beautifully made!!)

    • @danielbody6051
      @danielbody6051 Před 7 lety +3

      Yeah, I spotted that too.

    • @bluepalmsmusic
      @bluepalmsmusic Před 7 lety

      Jay A W yes, please correct!

    • @Rezac66
      @Rezac66 Před 7 lety

      Please fix the miss in the equation.

    • @crashcourse
      @crashcourse  Před 7 lety +89

      Added an annotation. Thanks for the heads up, guys! :)
      - Nick J.

    • @FrancisBurns
      @FrancisBurns Před 7 lety +7

      My professors would have failed you for that mistake....so much pain I've been through..

  • @jpsvs9983
    @jpsvs9983 Před 7 lety +10

    Im from Brazil and here we are about to have "our SAT" in four hours and I was still struggling to learn this.But let me say you guys are AWESOME cause you posted this video just in time,thanks.

  • @PBlueturtle
    @PBlueturtle Před 6 lety +3

    Such an amazingly beautiful and clear explanation of how to simplify a complex circuit. I cannot even BEGIN to tell you guys how thankful I am that you've helped me to understand this concept that I was struggling to grasp!

  • @uberEman
    @uberEman Před 7 lety +5

    This is way more fun and helpful if you do the stuff with her.

  • @fazemiffy707
    @fazemiffy707 Před 7 lety +11

    STRANGER THINGS!!!! i just loved this channel even more.

  • @laracroft003
    @laracroft003 Před 7 lety +108

    This was basically Stranger Things click bait for me.

    • @defrte
      @defrte Před 7 lety +4

      Lara Croft For science ?
      I'll let that pass ;)

    • @tnttiger3079
      @tnttiger3079 Před 7 lety +1

      I didn't even watch the video
      I just watched the bits with animated characters from the show!

  • @ajc5154
    @ajc5154 Před 7 lety +9

    I LOVE HOW THEY CONNECTED THIS TO STRANGER THINGS ♡

  • @sjwimmel
    @sjwimmel Před 7 lety +4

    Very cool that you managed to reference Stranger Things in the middle of the series!

  • @flodachieftori
    @flodachieftori Před 4 lety +2

    so well explained! Thank you.

  • @binijoseph4917
    @binijoseph4917 Před 5 lety +6

    OMG!!!!!!! she is so amazing.... I have been learning from her for the past two years. Keep going, lots of love from India😘😘

  • @kimberlylopez-zepeda4878

    THANNNKKK YYOOUUUUU! Pictures help out sooo much! I hope this helps me with not only resistance but also capacitance.

  • @chaz4510
    @chaz4510 Před 7 lety

    Great video! Never realised the stuff about the resistance in a voltmeter and an ampmeter

  • @k50159
    @k50159 Před 6 lety

    Amazing video. Thank you so much!

  • @chelseacco7567
    @chelseacco7567 Před 7 lety +2

    3:58 brought a single tear to my eye

  • @trippingreality4635
    @trippingreality4635 Před 6 lety

    Thanks, I really appreciate what you guys are doing.

  • @gameisfun7851
    @gameisfun7851 Před 7 lety

    Thanks for such a great explanation.

  • @kingk722
    @kingk722 Před 6 lety

    I dramatically enjoy watching your videos.

  • @bamhurger5376
    @bamhurger5376 Před 7 lety

    I needed this last year.

  • @joshuastueck1899
    @joshuastueck1899 Před 7 lety +3

    This definitely helped my comprehension and moved at just the right pace. Good stuff!

  • @lejiang7255
    @lejiang7255 Před 4 lety

    This cleared up all my issues with basic circuit analysis. Thanks

  • @scumbagel8518
    @scumbagel8518 Před 7 lety +61

    You know, thanks for making this series one year after I finished Physics class.
    Just my luck...

  • @helpontheway5404
    @helpontheway5404 Před 4 lety +1

    Wow this is one of the best crash course videos for me. Just my opinion.
    Thanks:)

  • @TheNydox
    @TheNydox Před 7 lety +1

    Crash course you saved my life one again!

  • @mirandaglez670
    @mirandaglez670 Před rokem

    I love you. I was so confused and this helped a lot

  • @Hofftari
    @Hofftari Před 7 lety

    Wow, first CC physics that I managed to follow without any issues!

  • @pixybubble
    @pixybubble Před 5 lety

    honestly one of the best videos in this series, the entire breakdown was super helpful ^^

  • @zackgravity7284
    @zackgravity7284 Před 4 lety +2

    I think i'll need to come back to 6:30, that makes things easier
    So parallel resistors share the same voltage drop but split the current unevenly
    But series resistors split the voltage drops but share the current equally

  • @Sharkz-iz6yf
    @Sharkz-iz6yf Před 5 lety +32

    6:02 That’s what she said....

  • @ErikDominguezTheWizard

    This is so helpful. Thank you! ^.^

  • @rishikenway522
    @rishikenway522 Před 5 lety

    Best explanation on resistors in series and parallel.

  • @andreslozano3631
    @andreslozano3631 Před 4 lety

    Thanks a lot. What a great video.

  • @sharkdavid
    @sharkdavid Před 7 lety +5

    One of the few CC Physics videos I only had to watch once! Of course, I am taking Physics II this semester. Thanks again Dr.!

  • @AyeshaKhan-gp9on
    @AyeshaKhan-gp9on Před 6 lety

    I loved this video!! ❤❤❤

  • @jayceel251
    @jayceel251 Před 2 měsíci

    THANK YOU SO MUCH UR A BLESSING

  • @aquaticsplashes
    @aquaticsplashes Před 4 lety +2

    so where do we draw the line between physics and electrical engineering?

  • @adarshsarangi3542
    @adarshsarangi3542 Před 4 lety

    Thank you mam!!. It became most easiest for me to understand.

  • @Mister_Soyuz_on_YT
    @Mister_Soyuz_on_YT Před 6 lety

    I read the assigned reading and worked out the practice problem but had difficulty grasping the concept after lecture. This video showed me better with visual demonstrations.

  • @Tom-gy5ii
    @Tom-gy5ii Před 6 lety

    Great Video!!! Helped me study for a test! :D

  • @boffin442
    @boffin442 Před 6 lety

    That's really good!

  • @natrix4lifeproductions

    I just realized that the title card references Stranger Things LOL Love It

  • @Diego-qt3xy
    @Diego-qt3xy Před 4 lety +10

    4:09 Every time a teacher finishes explaining something

  • @VideoPerfection
    @VideoPerfection Před 7 lety +100

    Stranger Things in the thumbnail!!

  • @rijumondal6876
    @rijumondal6876 Před 6 lety

    shini thanks a lot man you saved my life !!!! in india they don't teach this rule for current and voltage split which made a huge misconception for 4 years you just cleared in 2 minutes!!!

  • @realmonsterlee
    @realmonsterlee Před 7 lety

    love this channel, love her explanations , this video saved me from a week of experiments

  • @lavrentiysaharov2866
    @lavrentiysaharov2866 Před 6 lety

    Thank you so much

  • @adonaiblackwood7172
    @adonaiblackwood7172 Před rokem

    lol at the quick lil stranger things reference 0:07

  • @cooldiys3477
    @cooldiys3477 Před 4 lety +1

    Wow thank you so much, this was so helpful!!

  • @opufy
    @opufy Před rokem

    I just had a quiz on this and worked the solutions now watching this is super easy to absorb

  • @fatimaalbadi6175
    @fatimaalbadi6175 Před 4 lety

    I love it!

  • @HaiderBukhari
    @HaiderBukhari Před 4 lety

    she is the best study youtuber ever in history. And the youtuber with Best Acsent

  • @prenticedarlington2720

    Good. Very clear. Easy to forget and bust your multimeter on the current range. Been there!

  • @chalicefuse881
    @chalicefuse881 Před 6 lety

    Thanks for existing, you are my hero, i have spent hours trying to understand this and you made it a mathematical biscuit.

  • @sarahnwosu1714
    @sarahnwosu1714 Před 6 lety

    Just wanted to say this video low key saved my life. Thank you ❤

  • @user-bc3cn9kl3k
    @user-bc3cn9kl3k Před 6 lety

    Like this Gal. Awesome Video.

  • @qasdheem8289
    @qasdheem8289 Před 4 lety

    Thanks a lot really helped

  • @FJBHowto
    @FJBHowto Před 7 lety

    Thank you!!

  • @shaanaavdaniel3915
    @shaanaavdaniel3915 Před 6 lety

    THANK YOU!!!

  • @jasonblack652
    @jasonblack652 Před 6 lety

    so helpful

  • @willkenyon7924
    @willkenyon7924 Před 7 lety +72

    Who saw "physics" being spelled out by the lights in the beginning?

  • @nicksgarage8295
    @nicksgarage8295 Před 5 lety +1

    1:18 i noticed a major defect in the train. If u look at the wheels, you have 2 smaller ones and 2 larger ones. There is a bar that spans the middle big one and the small one. The bar ensures the rpm of the 2 wheels are constant. The problem here is since the wheel diameters are different, these wheels are rotating at different linear ft/min and the train would stall and the wheels would burn out. So in reality this train would never work.....

  • @rumahazra1472
    @rumahazra1472 Před 4 lety

    Thanks for sharing this vdo ..it helped me a lot in solving problems easily

  • @gerardoixehuatl6776
    @gerardoixehuatl6776 Před 7 lety

    awesome!!!! i love physics now!!!!!

  • @emans8762
    @emans8762 Před 5 lety +4

    I finally get circuits
    Thank you so much😀

  • @neilscott9281
    @neilscott9281 Před 5 lety

    Great video, thanks! :-)

  • @miasantangelo3003
    @miasantangelo3003 Před 5 lety

    YOU JUST SAVED MY LIFE THANK YOU!!!!

  • @harrisonharris6988
    @harrisonharris6988 Před 7 lety +55

    your animation is wrong around 3:14, it says 1/Req = 1.88 when in fact Req=1.88.

    • @TheJaseku
      @TheJaseku Před 7 lety

      That seems to happen a bit to often... there was a simular error in the last video too :(

    • @crashcourse
      @crashcourse  Před 7 lety +21

      On it. Thanks for the heads up!

    • @kauurimg4973
      @kauurimg4973 Před 5 lety +2

      How did they get 1.88 I dont get IT

    • @Dr_LK
      @Dr_LK Před 4 lety +1

      @@crashcourse but no correction yet!

    • @trentburrell
      @trentburrell Před 4 lety +4

      @@kauurimg4973
      1/x = 1/3 + 1/5
      1/x = 5/15 + 3/15
      1/x = 8/15
      8x = 15
      x = 15/8
      x = 1.875
      x = 1.88 (rounded up)

  • @chowfalp
    @chowfalp Před 4 lety +1

    I’m actually learning, and it’s glorious

  • @otmanelamhamdi7406
    @otmanelamhamdi7406 Před 7 lety

    thanks a lot !

  • @yoon1270
    @yoon1270 Před 5 lety

    Thank you❤

  • @jacjessie
    @jacjessie Před 6 lety

    I really loved this channel! Super! Tomorrow is my exam and I've learned a lot of knowledge because of their videos. :)

  • @Princess-zv3yu
    @Princess-zv3yu Před 6 lety

    Your speed is perfect. I understand you clearly I don't see the problem with it or why people have slow down the video to understand.
    Anyway good work👏👏👏👍👍

  • @PinkChucky15
    @PinkChucky15 Před 7 lety +1

    Great video :-)

  • @Animefreak242
    @Animefreak242 Před 7 lety +1

    enlightening

  • @glaze8855
    @glaze8855 Před 6 lety

    this saved my life I have physic test tmr but the questions are more complicated but nahh it's ok maybe this help me with the easy question on the test

  • @callietho
    @callietho Před 7 lety

    I learned all this stuff in highschool. fun stuff. i haven't used it much, but i got good at it for the tests.

  • @kweencoleenvlogs7708
    @kweencoleenvlogs7708 Před 6 lety

    Thank you so much this helped me a lot ❤

  • @oxiana7932
    @oxiana7932 Před 5 lety

    Thanks! I was really bad at physics. My unit was on Series circuit and parallel and boy was i bad! Until now that I watched this video. I am certain that i will pass my physics exam!!!

  • @ren7068
    @ren7068 Před 7 lety +1

    i have physics finals tomorrow and this saved my life thank you!!!

  • @Vanillzz
    @Vanillzz Před 7 lety +6

    I love this series so much!
    I'm in my my last years of high school studying physics, and this has helped me understand concepts so well! (even better than the teacher sometimes =_=)
    may this series never end! :D

  • @vishnuakundi4766
    @vishnuakundi4766 Před 6 lety

    Thank you

  • @jakemoreh6144
    @jakemoreh6144 Před 7 lety +3

    Omg PERFECT Stranger Things allusion. Anybody get it?

  • @yungdagger336
    @yungdagger336 Před 6 lety

    i love you , you made my life easy