Transformers are Awesome! | Doc Physics

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Doc Schuster

Doc Schuster

11 жыл бұрын

Step up, step down, step all around town. But who's buying? This video explains how transformers work.
This video introduces some ideas that are pretty tricky. For more detail, check out the videos on Power Distribution. Thanks.

Пікірлер: 371
@KabooM1067
@KabooM1067 8 жыл бұрын
That outro... omg XD. I wish a lot more teachers were this fun, it would be harder to NOT pay attention to them.
@garthmartinsen9612
@garthmartinsen9612 6 жыл бұрын
Uh... but power is also equal to V*V/R. (Ohm’s Law). There is a good reason for having high voltage for long distance power distribution but I am not sure you have pointed out the correct reason. I did however, really enjoy your presentation.
@aravindansundaram4010
@aravindansundaram4010 6 жыл бұрын
But you only use V2/R when there is uniform voltage throughout... I reckon the voltage between two transmitters are the same but the voltage between the power source and first transmitter is less than the voltage between power source and second transmitter.. So you use V2/R when voltage is same throughout as in a parallel connection in domestic circuits..
@lordfarqward8227
@lordfarqward8227 9 жыл бұрын
You're one of the few youtubers that don't make me fall asleep. Thank you! I learnt a lot:)
@Nicolaf95
@Nicolaf95 9 жыл бұрын
Wow, this is the first time i actually laugh at a science teaching video, good job my friend, i subscribed!
@MachinistDom
@MachinistDom 8 жыл бұрын
Normally I fall asleep listening to recorded lectures from my University. I think they should get Doc Schuster to do all of their lecture recordings.
@DrifterD
@DrifterD 8 жыл бұрын
You taught me about transformers so much better in less than 20 minutes than my lecturer who took 2 hours to teach this, without me understanding anything. *Thank youuuu*
@MikelHensley
@MikelHensley 8 жыл бұрын
I'm taking courses in electronics and sought out some KZfaq videos to break the monotony of reading. I greatly appreciate how you explain how Faraday's Law works with the transformers ... that was in my text but trying to read it just makes my head hurt. Your way of explaining helps a lot. Thanks!
@ECOMMUSK
@ECOMMUSK 6 жыл бұрын
i am a senior electrical engineer with 11 units (3 classes) left to complete and this has been more educational than anything any professor has ever taught me
@toddmolloy311
@toddmolloy311 5 жыл бұрын
Because we're taught to maintain the system we currently have not improve upon it..
@DocSchuster
@DocSchuster 11 жыл бұрын
Excellent question, dude! It's critical to note that when you use that equation for power lost in the line, V is the voltage DROP across the line. This is VERY often misunderstood. When you talk about a high-V line, you are referring to large V between the line and ground, but saying nothing about the voltage between one end and the other (hopefully the latter is small). You find V across the line by V = IR, so it is more direct to use P = I*I/R to find power loss on the line.
@8Steady
@8Steady 3 жыл бұрын
I've watched many transformer vids, but this is the first one I found that answers that question... "who's buying?". Thank you (8 years later).
@aliciaflores5052
@aliciaflores5052 10 жыл бұрын
Wow, a lot of enthusiasm, it made learning about transformers more fun and interesting. It was a little bit fast paced for me, but overall it was a great video!
@ernestwerbel6235
@ernestwerbel6235 7 жыл бұрын
Thank you for explaining this difficult subject making it easier to understand. Still learning!
@ingenfestbrems
@ingenfestbrems 5 жыл бұрын
Dude you’re taking this to personal 😁
@Ketchup__now
@Ketchup__now 9 жыл бұрын
Seriously, of all the videos that I've watched from you, this one was the funniest. Thanks always!!
@stolendata
@stolendata 8 жыл бұрын
I love how all the maths, theory etc. lead up to simple yet very stern and decisive declaration that the power grid was never meant to heat up the countryside.
@JohnSmith-cy8hq
@JohnSmith-cy8hq 9 жыл бұрын
08:02 I coughed up my chocolate milk.
@ntonyproduction
@ntonyproduction 9 жыл бұрын
Even though english is only my second language, I was able to understand clearly what you said in this video and it really helped me out. Thank you for these informations!
@sonilzaki
@sonilzaki 9 жыл бұрын
The way you ended it was totally AWESOME!!
@dannydsc7
@dannydsc7 8 жыл бұрын
Really appreciate the enthusiasm. You're awesome.
@benwilson224
@benwilson224 7 жыл бұрын
Omg 2:55 the transformer was so heavy he went autotune
@DocSchuster
@DocSchuster 11 жыл бұрын
Sometimes I think about how tremendously that would change our lives. Imagine!!!
@BrassicGamer
@BrassicGamer 5 жыл бұрын
Dude that was freakin' awesome. I was like "I did not come here for this!!!" but in a "I came for a bike and left with a Porsche" kinda way.
@mrorganic13
@mrorganic13 Жыл бұрын
Me sitting on my front porch at 5 am to the brisk morning breeze answering the last question. “YES!” Boy was I disappointed .
@RoyalAnarchist
@RoyalAnarchist 7 жыл бұрын
You're pretty entertaining my dude. I appreciate these videos; they really help me review the concepts.
@keithengineer4876
@keithengineer4876 8 жыл бұрын
Watching this video at my desk at Ameren. Didn't realize you were local. Wonderful videos. Its my last day here so you can tell my boss. I don't care.
@DocSchuster
@DocSchuster 8 жыл бұрын
+Keith Engineer HA!
@sonnykay3594
@sonnykay3594 8 жыл бұрын
Doc, one thing i have to say....... YOU ARE AWESOME ,,,,,Thank you again.
@ajcrowe
@ajcrowe 7 жыл бұрын
Hey David! This came up on auto play after watching another video about transformers in a class I'm taking. And I said: "Hey I went to grade school with that guy!" Awesome indeed!
@DocSchuster
@DocSchuster 7 жыл бұрын
Ha! Autoplay is the refuge of the scoundrel youtube creator, you see. Although, any class with transformers in it is a great class.
@LinusN1887
@LinusN1887 10 жыл бұрын
You're awesome bro. Btw, you should watch your videos in 1.5 speed. I feel like I'm in a vortex of knowledge when I do.
@DocSchuster
@DocSchuster 10 жыл бұрын
Linus Nandati Thanks! That's really a fun idea, too. A vortex of knowledge!
@DocSchuster
@DocSchuster 10 жыл бұрын
YES! The iron in the core is laminated sheets to prevent eddy currents, which would significantly heat the iron and lower transformer efficiency. You can also make cores out of nonconductive iron-ceramic suspensions for the same reason.
@DocSchuster
@DocSchuster 11 жыл бұрын
A nice sound bite, but it masks some important physics: Sure, current is what harms tissue, but a higher voltage power line (which is not current-limited) will ALWAYS cause a higher current through your fleshy body (that has a fixed resistance) 'cuz V = IR. You need to be WAY more careful around high-voltage lines than low-V lines. It's the current through YOU that matters, and that's determined by YOUR resistance and the voltage across you (from the line to ground, typically). DANGER!
@salonisingla1665
@salonisingla1665 10 жыл бұрын
Thank you so much for clearing up the big voltag-small current mess doc!!
@harmeetbindra6978
@harmeetbindra6978 10 жыл бұрын
This video was so helpful. Thank you
@saanikagupta1508
@saanikagupta1508 7 жыл бұрын
Thank you Doc Schuster so much!!! Your way of teaching is really good!! It helped me a lot. pls make a video for rectifier, transistor and amplifier. :)
@ssp4412
@ssp4412 8 жыл бұрын
Awesome video. Thank you so much!! ^ _ ^
@DocSchuster
@DocSchuster 11 жыл бұрын
Oh, I understand your confusion. If I just hook up a battery to the primary coil of a transformer, that coil will experience a change in flux, right? The only problem is that the flux will approach a constant (saturated) value based on the steady-state current from the battery. That's why I mentioned a battery.
@davidstone2405
@davidstone2405 4 жыл бұрын
You are the best. We need more people like you. Thank you so much.
@DocSchuster
@DocSchuster 11 жыл бұрын
Boy, I'm sure not an expert here, but I'll shoot from the hip. Maintaining safety raises costs while lower current lowers costs. You've also got to have step-up and step-down transformers at each end. So there's a sweet spot that depends on length of run and power needed. Hiring an engineer to find that sweet spot is probably a good idea. Maybe someone who knows more firsthand about power distribution will comment...
@Bluecolorfilm
@Bluecolorfilm 8 жыл бұрын
Beautiful, thanks!
@nimeshkrishnani
@nimeshkrishnani 10 жыл бұрын
doc (Y) you the man who treats the hear'er as a friend,the reason i watched and learnt,i did learn about transformers
@DocSchuster
@DocSchuster 10 жыл бұрын
Thank you! I'm glad the video was useful.
@nimeshkrishnani
@nimeshkrishnani 10 жыл бұрын
it really was useful,you can say i managed to crack my exam the next day,due to the video XD
@DocSchuster
@DocSchuster 10 жыл бұрын
Ka-POW!
@nimeshkrishnani
@nimeshkrishnani 10 жыл бұрын
ka POW XD thank ya so much monsieur i shall do the knowledge sharing too if i am ever that good
@DocSchuster
@DocSchuster 10 жыл бұрын
I'm sure you'll have something to share. Do it when the time is right.
@DocSchuster
@DocSchuster 11 жыл бұрын
I agree with you that cost and safety are factors, but you're confused about the voltage/current danger. Sure, current is what harms tissue, but a higher voltage power line (which is not current-limited) will ALWAYS cause a higher current through your fleshy body (that has a fixed resistance). You need to be WAY more careful around high-voltage lines than low-V lines. Again, that is exactly why they must be higher up and better protected from accidental bumping.
@shurooq9299
@shurooq9299 9 жыл бұрын
Dude you're Awesome ! Thank you for the great explanation ..
@sienchokhs
@sienchokhs 6 жыл бұрын
Way to go! The 18 minutes was over so much sooner than I expected.
@souhardyahalder3903
@souhardyahalder3903 2 жыл бұрын
even though i am thousands miles away,my high school days were beautified by this person.
@ididnothingmonkey
@ididnothingmonkey 8 жыл бұрын
Thank you! Very informative video!
@aefieefnvhas
@aefieefnvhas 7 жыл бұрын
Absolutely love your videos, Doc! Legit your number 1 fan sitting right here.
@jbintali9490
@jbintali9490 5 жыл бұрын
Great video! Very well explained. Thank you.
@wilmeriscool
@wilmeriscool 10 жыл бұрын
Thank you for your lessons here in the navy we're studying circuits and these videos are way more helpful than the classes.
@DocSchuster
@DocSchuster 10 жыл бұрын
I am honored to be able to help the good people who are risking their lives for my safety and security. THANK YOU!
@ldiazmdiaz
@ldiazmdiaz 3 жыл бұрын
One thing we also had to take into account was the transformer winding gauges (AWG) and resistance of each windings. We design these power supply (AC/DC) with an engineer and I was the Lab Technician.
@DaFratRat
@DaFratRat 8 жыл бұрын
I love this.
@DocSchuster
@DocSchuster 11 жыл бұрын
Not quite. Reread the previous post carefully, then continue: The current THROUGH the high-V line will be less than a low-V line that transfers the same power (because power transferred is IV). YOU DON'T CARE ABOUT THE CURRENT THROUGH THE LINE WHEN DECIDING WHETHER TO DIE OR NOT. The current through you is determined by I = V/R, where V is voltage between line and you (assuming you grabbed the dang wire) and R is YOUR resistance. However, Van De Graaffs are another story...
@arch_engineer8773
@arch_engineer8773 9 жыл бұрын
Residential voltage is usually 120/240V. 120V line to neutral and 240V line to line, but I digress, you did an excellent job of explaining, and you kept it interesting.
@xAGirlWithNoName
@xAGirlWithNoName 11 жыл бұрын
I wish my teacher was like you, I had so much fun watching this video... thank you so much!
@lulasplayzin
@lulasplayzin 6 жыл бұрын
Thx man, I was really having trouble deducing the equation, and now it's solved! :D
@jesussaquin6266
@jesussaquin6266 Жыл бұрын
Beautifully explained
@logchain70
@logchain70 6 жыл бұрын
IVE NEVER BEEN SO JACKED UP FROM WATCHING A KZfaq VIDEO ABOUT ELECTRICAL CRAP, THIS GUY SHOULD BE A PEP TALKER FOR MMA FIGHTERS WOOOOOOOOOOOOO
@TRANNGUYEN-nx5mx
@TRANNGUYEN-nx5mx 7 жыл бұрын
Awesome. Thanks
@thg_2728
@thg_2728 5 жыл бұрын
This video is amazing, I think I'm gonna watch more of these coz it answers basic questions and puts it into context. AND you make it very interesting lol
@mrmusicalinstrument
@mrmusicalinstrument 7 жыл бұрын
If you work out, you win. If you pou, you pin. I can finally remember these formulas.
@yincronje9483
@yincronje9483 8 жыл бұрын
This is amazing and so helpful, thank you! Im learning for my final matric exam and this has been really useful
@lullabysanton2241
@lullabysanton2241 7 жыл бұрын
big up! simple and clear!
@leoclarkin5944
@leoclarkin5944 5 жыл бұрын
Great refresher explanation, thx
@Andrei-ds8qv
@Andrei-ds8qv 6 жыл бұрын
Very very nice! thanks!
@cherryxx6070
@cherryxx6070 8 жыл бұрын
You go Doc! HAHAHAAH best lesson ever! I wish you were my teacher at school ^_^
@themandude20
@themandude20 10 жыл бұрын
I love your electricity math and circuit videos, they are the best on the net. One thing to point out is, the power to feed homes in north america is 240v not 120v as most people think. It's a 3 wire system giving the option of 240v and 120v service to homes.
@DocSchuster
@DocSchuster 10 жыл бұрын
That's a super idea! I'm not sure where it would fit, but I do have so much more to say about electrical distribution. Thanks for the note, and thanks for watching.
@AxzenStarcraft
@AxzenStarcraft 11 жыл бұрын
Wow, this is amazingly helpful. Serious props, thank you so much.
@chadgutierrez_music
@chadgutierrez_music 2 жыл бұрын
Thanks for making it simpler! Also, I love the distribution line drawings hahaha
@TheBlondie81
@TheBlondie81 8 жыл бұрын
Funny and educational! *thumbs up*
@DocSchuster
@DocSchuster 10 жыл бұрын
Think about which way the plates are oriented - that may help.
@hydorah
@hydorah 8 жыл бұрын
Would be good if you could explain more about what delta phi is and how it is calculated and such like. Would be useful for someone like me who knows nothing about the mathematical side of understanding transformers!
@MatheusSilva-dragon
@MatheusSilva-dragon 6 жыл бұрын
Wow! Interesting! Thanks, doc!
@paarynvadgama
@paarynvadgama 8 жыл бұрын
Great video, love the enthusiasm, and clear explanation :)
@silver44fang
@silver44fang 4 жыл бұрын
This was very fun to watch.
@DocSchuster
@DocSchuster 10 жыл бұрын
I probably won't get them before you need them. What textbook are you using? Communications systems could be as large as a college degree!
@abdullahibrahim1767
@abdullahibrahim1767 6 жыл бұрын
very good, it is a superb performance.. thanks
@adbeellopez4792
@adbeellopez4792 4 жыл бұрын
This was awesome! Thank you
@Bigbossperson
@Bigbossperson 10 жыл бұрын
Thank You! The best i've ever seen this explained
@DocSchuster
@DocSchuster 10 жыл бұрын
I'm happy to hear that. Thank you!
@hatejewsand2a
@hatejewsand2a 9 жыл бұрын
I tasted a Jim Carry:P . Man you are hilarious :) I laughed very much while you talking XD ! Man you made smile me XD Thx for your comedic fluency that narrative XD
@HazeAnderson
@HazeAnderson 5 жыл бұрын
Dat ending tho 😂😂😂
@DocSchuster
@DocSchuster 11 жыл бұрын
YOU'RE really nice! Thanks!
@DocSchuster
@DocSchuster 11 жыл бұрын
It certainly couldn't. When did I say that? Seems like I'll have to edit a bit.
@Daca241
@Daca241 6 жыл бұрын
Damn,u explained it properly,always had trouble understanding that thing,ty man,u are amazing.
@anthonyvolkman2338
@anthonyvolkman2338 4 жыл бұрын
Your mother and father live in a small house with one door and no windows. I love it!
@filip2365
@filip2365 4 жыл бұрын
Legendary...thank you :)
@madrid1036
@madrid1036 7 жыл бұрын
waw! a very profficianal way of educating. thank you sir
@Kravch96
@Kravch96 10 жыл бұрын
Thank you for your videos, Doc!
@taylorwhisnsnt5526
@taylorwhisnsnt5526 7 жыл бұрын
lol that ending though
@ltherix225
@ltherix225 3 жыл бұрын
Very interesting lesson.
@jamiehardie3609
@jamiehardie3609 5 жыл бұрын
man I find u fun it I had teachers like u wen I was at school I may have be top of the class
@roari5740
@roari5740 8 жыл бұрын
Funny and useful... Great vids man
@hakimnoori627
@hakimnoori627 8 жыл бұрын
i come from Afghanistan. thank you very much. I undrestod more than i did in the class.
@MECHEnglish
@MECHEnglish 10 жыл бұрын
I am a high school student for English and I am really thankful that was helpful .
@DocSchuster
@DocSchuster 10 жыл бұрын
Yay!
@MECHEnglish
@MECHEnglish 10 жыл бұрын
I am Egyptian by the way :)
@DocSchuster
@DocSchuster 10 жыл бұрын
Nice! I have a wonderful Egyptian friend who brought us a meal when my baby was born - you eat VERY WELL! I'd love to visit someday. Thanks for watching.
@MECHEnglish
@MECHEnglish 10 жыл бұрын
Doc Schuster it must have been Fata :D I hope you will someday . It's my honor .
@DocSchuster
@DocSchuster 10 жыл бұрын
Thank you, Esraa!
@THE______TRUTH
@THE______TRUTH 9 жыл бұрын
Man that was a awesome explanation your ability to keep my attention is unbelievable. Thumbs up!
@mandisa7356
@mandisa7356 5 жыл бұрын
you really went and drew F O R T Y loops lmao you're brilliant
@wajihazahra2899
@wajihazahra2899 7 жыл бұрын
Really helped, have my physics igcse exam this week
@emmang7593
@emmang7593 6 жыл бұрын
literally saved my alevel phys exam which is coming up next monday lol... also surprised that you rly drew 40 turns on the secondary coil :)
@DocSchuster
@DocSchuster 11 жыл бұрын
Many schools at age 14 or 16. But my treatment is at a first-year undergraduate level here.
@ghacrux
@ghacrux 4 жыл бұрын
I m turkish highschool student we learned about transformers in school but i have never seen transformer before ... that was fun and you are the funniest teacher EVER 😂 All i learn in school is N1/N2=V1/V2☹️
@ACKtube-of3qf
@ACKtube-of3qf 6 жыл бұрын
Thank you so much this really helped it clarified a lot and at the same time I laughed a bunch. What a nice way to learn thanks again
@kritikk2977
@kritikk2977 6 жыл бұрын
Thnk for this helpful video, u r a great explanator
@eloisejeao3522
@eloisejeao3522 9 жыл бұрын
i get it with full of fun!!! thx doc
@alevelsdemystified3410
@alevelsdemystified3410 6 жыл бұрын
Wow!Just wow!
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