Transformers are Awesome! | Doc Physics

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
    @KabooM10678 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

    5 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
    @lordfarqward82279 жыл бұрын

    You're one of the few youtubers that don't make me fall asleep. Thank you! I learnt a lot:)

  • @8Steady
    @8Steady3 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).

  • @MachinistDom
    @MachinistDom8 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.

  • @souhardyahalder3903
    @souhardyahalder39032 жыл бұрын

    even though i am thousands miles away,my high school days were beautified by this person.

  • @MikelHensley
    @MikelHensley8 жыл бұрын

    I'm taking courses in electronics and sought out some KZread 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!

  • @DrifterD
    @DrifterD7 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*

  • @Nicolaf95
    @Nicolaf959 жыл бұрын

    Wow, this is the first time i actually laugh at a science teaching video, good job my friend, i subscribed!

  • @ernestwerbel6235
    @ernestwerbel62357 жыл бұрын

    Thank you for explaining this difficult subject making it easier to understand. Still learning!

  • @salonisingla1665
    @salonisingla16659 жыл бұрын

    Thank you so much for clearing up the big voltag-small current mess doc!!

  • @logchain70
    @logchain706 жыл бұрын

    IVE NEVER BEEN SO JACKED UP FROM WATCHING A KZread VIDEO ABOUT ELECTRICAL CRAP, THIS GUY SHOULD BE A PEP TALKER FOR MMA FIGHTERS WOOOOOOOOOOOOO

  • @aliciaflores5052
    @aliciaflores50529 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!

  • @user-rx5eg3sf6z
    @user-rx5eg3sf6z4 жыл бұрын

    I like the way you explain it , it shows how much you are fascinated by those lovely transformers

  • @ntonyproduction
    @ntonyproduction9 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!

  • @munumaconrat5886
    @munumaconrat58862 жыл бұрын

    Thanks👨🏾‍⚖️ Mr Doc Schuster, I'm learning a lot from your KZread Channel than I do in the classroom🙏🏾.

  • @ECOMMUSK
    @ECOMMUSK6 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..

  • @RoyalAnarchist
    @RoyalAnarchist7 жыл бұрын

    You're pretty entertaining my dude. I appreciate these videos; they really help me review the concepts.

  • @DocSchuster
    @DocSchuster11 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.

  • @thosehumans9329
    @thosehumans93292 жыл бұрын

    You explain things in a way that excites and makes me want to pay attention. Thank you

  • @sonilzaki
    @sonilzaki9 жыл бұрын

    The way you ended it was totally AWESOME!!

  • @Ketchup__now
    @Ketchup__now9 жыл бұрын

    Seriously, of all the videos that I've watched from you, this one was the funniest. Thanks always!!

  • @ayushimahajan6931
    @ayushimahajan69316 жыл бұрын

    The most fun class ever! I could never get these transformer thingies and here I am.. almost in love with them

  • @stolendata
    @stolendata8 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.

  • @dannydsc7
    @dannydsc78 жыл бұрын

    Really appreciate the enthusiasm. You're awesome.

  • @aefieefnvhas
    @aefieefnvhas7 жыл бұрын

    Absolutely love your videos, Doc! Legit your number 1 fan sitting right here.

  • @saanikagupta1508
    @saanikagupta15087 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. :)

  • @anthonyvolkman2338
    @anthonyvolkman23383 жыл бұрын

    Your mother and father live in a small house with one door and no windows. I love it!

  • @davidstone2405
    @davidstone24054 жыл бұрын

    You are the best. We need more people like you. Thank you so much.

  • @themandude20
    @themandude2010 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.

  • @wilmeriscool
    @wilmeriscool10 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!

  • @BrassicGamer
    @BrassicGamer4 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.

  • @ingenfestbrems
    @ingenfestbrems5 жыл бұрын

    Dude you’re taking this to personal 😁

  • @xAGirlWithNoName
    @xAGirlWithNoName11 жыл бұрын

    I wish my teacher was like you, I had so much fun watching this video... thank you so much!

  • @thg_2728
    @thg_27285 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

  • @chadgutierrez_music
    @chadgutierrez_music2 жыл бұрын

    Thanks for making it simpler! Also, I love the distribution line drawings hahaha

  • @sonnykay3594
    @sonnykay35948 жыл бұрын

    Doc, one thing i have to say....... YOU ARE AWESOME ,,,,,Thank you again.

  • @brianjlayman
    @brianjlayman3 жыл бұрын

    Best voltage mic 🎤 drop I’ve ever seen .

  • @JohnSmith-cy8hq
    @JohnSmith-cy8hq9 жыл бұрын

    08:02 I coughed up my chocolate milk.

  • @arch_engineer8773
    @arch_engineer87738 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.

  • @jbintali9490
    @jbintali94905 жыл бұрын

    Great video! Very well explained. Thank you.

  • @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 .

  • @THE______TRUTH
    @THE______TRUTH8 жыл бұрын

    Man that was a awesome explanation your ability to keep my attention is unbelievable. Thumbs up!

  • @Rygmhearthstone
    @Rygmhearthstone5 жыл бұрын

    Way to go! The 18 minutes was over so much sooner than I expected.

  • @theengineeringhobbyist7109
    @theengineeringhobbyist71095 жыл бұрын

    Your enthusiasm is awesome! Some critical feedback is that you don't go through an explanation of where the initial equations come from just some algebra on equations you just randomly pulled out of seemingly nowhere.

  • @nimeshkrishnani
    @nimeshkrishnani10 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.

  • @hydorah
    @hydorah8 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!

  • @shurooq9299
    @shurooq92999 жыл бұрын

    Dude you're Awesome ! Thank you for the great explanation ..

  • @garyweber6413
    @garyweber64134 жыл бұрын

    Your awesome man.Please make a video about why you see different core shapes and configurations.

  • @harmeetbindra6978
    @harmeetbindra697810 жыл бұрын

    This video was so helpful. Thank you

  • @ldiazmdiaz
    @ldiazmdiaz3 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.

  • @ajcrowe
    @ajcrowe7 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.

  • @lulasplayzin
    @lulasplayzin6 жыл бұрын

    Thx man, I was really having trouble deducing the equation, and now it's solved! :D

  • @keithengineer4876
    @keithengineer48768 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!

  • @ACKtube-of3qf
    @ACKtube-of3qf6 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

  • @LinusN1887
    @LinusN18879 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

    9 жыл бұрын

    Linus Nandati Thanks! That's really a fun idea, too. A vortex of knowledge!

  • @Daca241
    @Daca2416 жыл бұрын

    Damn,u explained it properly,always had trouble understanding that thing,ty man,u are amazing.

  • @ghacrux
    @ghacrux3 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☹️

  • @DocSchuster
    @DocSchuster11 жыл бұрын

    Sometimes I think about how tremendously that would change our lives. Imagine!!!

  • @emmang7593
    @emmang75936 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 :)

  • @Bigbossperson
    @Bigbossperson10 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!

  • @yincronje9483
    @yincronje94838 жыл бұрын

    This is amazing and so helpful, thank you! Im learning for my final matric exam and this has been really useful

  • @AxzenStarcraft
    @AxzenStarcraft11 жыл бұрын

    Wow, this is amazingly helpful. Serious props, thank you so much.

  • @benwilson224
    @benwilson2247 жыл бұрын

    Omg 2:55 the transformer was so heavy he went autotune

  • @ididnothingmonkey
    @ididnothingmonkey8 жыл бұрын

    Thank you! Very informative video!

  • @madrid1036
    @madrid10367 жыл бұрын

    waw! a very profficianal way of educating. thank you sir

  • @jamiehardie3609
    @jamiehardie36095 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

  • @MegaGasek
    @MegaGasek7 жыл бұрын

    Your videos are incredible. You gained one more subscriber. I am trying to learn more about transformers because I am moving to a country where they've got only 220v... All my current (pun?) devices are 110V North American, some are bivolt. Kitchen appliances are 110V and I am taking them with me. I took a look at transformers online. I don't trust any of them. I did my research and the one I found of a maybe, possibly, acceptable quality is the Kriegers... I have learned that heavy in weight, power supplies make for better, quality products. Somebody stated that the Kriegers are heavy... Anyway, my question is: If I have a device that is 300 watts, I am going to double or triple that amount in my transformer... I will get a transformer rated for 900 watts for example (not planning on powering hair dryers, microwave oven, etc). I know they are rated at that but don't really output that much because of heat, etc... HERE IS THE QUESTION (finally) Due to the transformer being a ''simple'' device, will the components, ie cheap brand, expensive brand make a real difference?

  • @abdelrahmanwagih873
    @abdelrahmanwagih8739 жыл бұрын

    Thanks that really helped alot ! Although why do we always use voltages to express the ammount of current we are transferring ? Why do we always say 120 volts instead of saying their equivalent in Ampere as current intensity .. is there a reason for that ?

  • @hatejewsand2a
    @hatejewsand2a9 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

  • @ssp4412
    @ssp44128 жыл бұрын

    Awesome video. Thank you so much!! ^ _ ^

  • @DocSchuster
    @DocSchuster10 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.

  • @dsayan
    @dsayan7 жыл бұрын

    Hi there. Great vid and info. I'm currently trying to build a transformer and was hoping you could help me. Specs show a tapped primary (0 - 10 - 210 - 230V) and six secondary windings (0 - 250V at 120mA / 0 - 35V at 20mA / a tapped low voltage winding 0 - 4 - 5 - 6.3 at 3A - 12.6V at 1A/ and three 0 - 6V at 50mA). No split bobbins just grounded copper tape between primary and secondary. I'm trying to figure out which winding order would suit this transformer best. Would you start with the primary, isolate and then just continue winding full layers from the lowest V winding to the highest? (for exemple the 0 - 6s first followed by the tapped winding, the 0 - 35 and finally the 0 - 250? Or does this type of setup requires more care in its order? I also trying to guess how the A decreases in that last tap 12.6V. Any idea? Cheers

  • @rolandmousaa3110
    @rolandmousaa31102 жыл бұрын

    Doc.. like the way you teach electricity.. GREAT! (inventor)

  • @eloisejeao3522
    @eloisejeao35229 жыл бұрын

    i get it with full of fun!!! thx doc

  • @jesussaquin6266
    @jesussaquin626611 ай бұрын

    Beautifully explained

  • @WillemZenhorst
    @WillemZenhorst6 жыл бұрын

    Very cool story, love the ending XD So a question: I have some regular, 1:1, 4 pin transformer, but need some with a 5th pin for the ground-reference point.. Could I 'add' the 5th, centre tap, by just adding two equal resistors between positive and negative pin? I mean, at any given moment it's basically at V+ and V-, so by adding a Voltage Divider like that, could you 'hack' the ground pin into it? (It's for a Passive Ring Modulator, DIY synths and stuff)

  • @mandisa7356
    @mandisa73565 жыл бұрын

    you really went and drew F O R T Y loops lmao you're brilliant

  • @Bluecolorfilm
    @Bluecolorfilm8 жыл бұрын

    Beautiful, thanks!

  • @cherryxx6070
    @cherryxx60708 жыл бұрын

    You go Doc! HAHAHAAH best lesson ever! I wish you were my teacher at school ^_^

  • @hakimnoori627
    @hakimnoori6278 жыл бұрын

    i come from Afghanistan. thank you very much. I undrestod more than i did in the class.

  • @remllof
    @remllof5 жыл бұрын

    this guy is amazing, i want to like this video about 100 more times, wow

  • @the1nonlyani
    @the1nonlyani11 жыл бұрын

    ya, thank u, iddint look that far ahead - watched a bit of ur video on the night before the exam. it helped thank u

  • @NNN-kkky
    @NNN-kkky9 жыл бұрын

    I see the iron ring on your hand. Can't wait to get mine. though you should wear in your pinky finger

  • @watubelukinat
    @watubelukinat9 жыл бұрын

    some adapters use switching circuits - so the time ! power is gated ? ( whether a ups / uninterrupted power supply , or laptop charger ) sets the final output voltages .

  • @abdullahibrahim1767
    @abdullahibrahim17676 жыл бұрын

    very good, it is a superb performance.. thanks

  • @MatheusSilva-dragon
    @MatheusSilva-dragon6 жыл бұрын

    Wow! Interesting! Thanks, doc!

  • @wajihazahra2899
    @wajihazahra28997 жыл бұрын

    Really helped, have my physics igcse exam this week

  • @kritikk2977
    @kritikk29776 жыл бұрын

    Thnk for this helpful video, u r a great explanator

  • @lullabysanton2241
    @lullabysanton22417 жыл бұрын

    big up! simple and clear!

  • @DEN1960STE
    @DEN1960STE7 жыл бұрын

    Great thanks. What about the diodes? Do transformers emit heat because the coils impede the current flow? If so input power must be greater than output power.

  • @DaFratRat
    @DaFratRat8 жыл бұрын

    I love this.

  • @DocSchuster
    @DocSchuster11 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...

  • @DocSchuster
    @DocSchuster11 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.

  • @mukeshpandya4171
    @mukeshpandya41717 жыл бұрын

    Wait, i just took the bait and the video ended with " No!" meh! Lovely video, Kids are so lucky to enjoy such educational videos FREE of cost. Felt I used 18 minutes of my time on youtube watching something worthwhile of what i learnt in my past life... enjoyed it!

  • @sta8hs13
    @sta8hs137 жыл бұрын

    ahahahaha! I wish I could have so much fun studying by myself! awesome video, funny as hell in the end!

  • @leoclarkin5944
    @leoclarkin59445 жыл бұрын

    Great refresher explanation, thx

  • @guruji243
    @guruji2436 жыл бұрын

    Hi Doc thanks for the info. I tried to wind a trafo for a small inverter.It gave me high voltage on sec but could not drive a small motor even through a regulator.

  • @paarynvadgama
    @paarynvadgama8 жыл бұрын

    Great video, love the enthusiasm, and clear explanation :)

  • @filip2365
    @filip23654 жыл бұрын

    Legendary...thank you :)

  • @DocSchuster
    @DocSchuster11 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!