Circuit Analysis: Crash Course Physics #30

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.

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[crashcourse]

We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App!

[patrickmayer]

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

[freya]

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

[ruiningwang]

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

[ssssssssssssssssssssssssss]

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.

[kolbeowen]

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

[Bitsmap]

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

[Kristine.baltazar]

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

[viancagoosen]

OH MY WORD GIRL THANK YOU 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

[Sethr]

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!

[rideabike]

"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-

[andrewholmes]

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!

[BlueyMcPhluey]

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

[shinigami]

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.

[krgdd]

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!

[takudhewa]

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

[zacharywilson]

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?

🤦‍♂️🤦‍♂️🤦‍♂️

[JosephVFX]

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!!)

[mugwerimollynasanga]

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

[PBlueturtle]

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!