DC Resistors & Batteries: Crash Course Physics #29

Batteries power much of your daily life, so today we're going to talk about how they work. We're also explaining how terminal voltage results from the natural internal resistance of every real battery. We'll get into both series and parallel circuit configurations, and how the laws of conservation affect the current and voltage for each.

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[bartekmalinowski]

Amazing how I sit 45 mins in a class and remember nothing and then spend 10 mins on this amazing video and understand everything so clearly! Love you CrashCourse <3

[AaronDeb]

Lol I just realised that one of the little note things on the intro says 'Trigger Warning: Images may contain trigonometry'. The person who comes up with these jokes deserves to be knighted.

[CHAS]

Now I know why PBS is so important. Another great show.

[invidious]

Great video for an electrical engineering 101 audience. Kudos.

I got my BSEE back in 2008, its a great degree to consider for anyone who finds this interesting and has strong math skills. I have never met and EE who has had trouble finding work or who didn't like their job.

[siu]

I really wished that I had this kind of videos when I was in school. They are really good at explaining the theory, formulas and the actual effect in the real world. Keep doing a great job!!!

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Congrats Crash Course on 5M subbies! Half way to 10M and your Diamond youtube play button.

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Also as a side note this host(whose new to me) is just fantastic!! You guys always get the most amazing people on your channel. Keep up the amazing work!

[afiya]

5:39 - ''what goes in must comes out''
brain: hold my beer

[power-max]

Ohh, can't wait till we get to Mesh, Nodal, and Superposition Analysis, Kirchhoff's Voltage and current law, Norton and Thevinin equivalent models, AC circuit analysis, complex impedance, Dissipation factor, and capacitive and inductive reactance! :D

[chikaokolo]

The analogy with the flowing water was great. Thanks.

[pesterenan]

Wow! Congratulations on the 5 million subscribers! :D

[chillsahoy]

One of the great advantages of parallel circuits is that if one component stops working (so the circuit is broken), it only affects that branch of the circuit but the rest can carry on functioning normally. Imagine Christmas lights: you want to get the ones where if one light goes out, the others will still light up. Otherwise, finding the problem bulb is going to be a nightmare.

[sebastianm.]

really one of your best videos to date. the mountain analogy was perfect. people use pipes to demostrate but it falls through in some concepts.
this one was amazingly done!!

[lazyboy]

caution: phone temperature is proportional to score on AP exam.

Where's the microvave oven?

[taltheweirdo]

THANK YOU SO MUCH FOR HELPING ME PAST ME EXAMS

[guichabanaano]

How did she know that I was literally watching crash course for three hours for real. Spoopy :'D

[radagastwiz]

Good on Thought Cafe for adding a Halloween touch.

[salukaranapura]

OG this is the video I was searching for my lesson . Thanks