Intro to AC Circuits using Phasors and RMS Voltage and Current | Doc Physics

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Doc Schuster

Doc Schuster

Күн бұрын

We will use a cool method of describing the oscillation of current and voltage called phasors, which are fixed-length vectors that rotate at a constant frequency. It will be very fun. Yes, really.

Пікірлер: 601
@DocSchuster
@DocSchuster 11 жыл бұрын
India is awesome. Indians are some of my best students. I want to go there someday!
@nagigoud3374
@nagigoud3374 6 жыл бұрын
Doc Schuster Ur have a great skills I love you...
@سبحانالله-ص2ك2ص
@سبحانالله-ص2ك2ص 6 жыл бұрын
How about Egyptian?
@kumarsanjeet7056
@kumarsanjeet7056 6 жыл бұрын
great work..
@blackcat-mp7kh
@blackcat-mp7kh 5 жыл бұрын
Thanks doc
@dhanurbanpanim
@dhanurbanpanim 4 жыл бұрын
Welcome
@TheAmeliix
@TheAmeliix 9 жыл бұрын
"sqroot" hahahaha omg I love that! Thanks so much, I'm in first year engg and I need to pass this course.
@shankhadeeproy5791
@shankhadeeproy5791 7 жыл бұрын
we all need to pass
@krugerbrentquiming1903
@krugerbrentquiming1903 7 жыл бұрын
*screwed
@davialbuquerque4964
@davialbuquerque4964 6 жыл бұрын
Do you study Engineering at the University of Victoria in British Columbia/Canada?
@MarkMcDaniel
@MarkMcDaniel 4 жыл бұрын
When you don't have time for extra syllables.
@alexxchavezee
@alexxchavezee 8 жыл бұрын
You just dispelled the mystery of RMS for me! Thank you!!
@scholar7558
@scholar7558 2 жыл бұрын
After 9 years, this video is still so useful. Kudos to you professor.
@danielespinoza264
@danielespinoza264 8 жыл бұрын
I just want you to know that I love you. Nah, but seriously dude your videos are saving me in class. I learned more from this video than I did an entire semester of circuits
@DocSchuster
@DocSchuster 11 жыл бұрын
Disha - work problems. Find a friend who is about as strong as you are in class. Work problems from the chapters that gave you the most trouble, and check them with your friend. And then work more problems. If a concept gives you trouble, watch a video, but then work more problems. Good luck.
@actually4660
@actually4660 7 жыл бұрын
Doc Schuster 7:12 You: ahan?? me: O Yean!!
@LithicStudios
@LithicStudios 8 жыл бұрын
You're a good guy Doc. As an apprentice electrician trying to discern meaning out of a vague, cryptic textbook, I appreciate these videos immensely.
@Dr_MW
@Dr_MW 9 жыл бұрын
"Shoutout to India.." *grins* Shoutout to you too for this amazing vid. Hats Off!
@andreasgutzold
@andreasgutzold 9 жыл бұрын
This is such an amazing video, your enthusiasm is so infectious. I could barely bring myself too study this topic for 5 minutes before this video and now I actually enjoy the topic, thank you.
@jean-gabriellacombe3206
@jean-gabriellacombe3206 9 жыл бұрын
I usually never comment on KZbin, but just had to thank you for this! Absolutely brilliant
@varunrajput7881
@varunrajput7881 7 жыл бұрын
do u have piles
@ameyagadiwan
@ameyagadiwan 10 жыл бұрын
Wish my teachers explained in this manner..i guess my whole class would have topped then..anyways..u kept me focused all the time with your strange but cool way..cheers!
@jacquesd.k.812
@jacquesd.k.812 8 жыл бұрын
You're a legend. Thanks for making my electromechanics class bearable
@Benlarsendk
@Benlarsendk 10 жыл бұрын
I am so facinated over how much you seem to enjoy teaching this. I never got why you'd take the half of v_max^2, but your way of showing it just made an AC-ligh bulb go on in my head! Keep on the EPIC work! :) Cheers!
@DocSchuster
@DocSchuster 10 жыл бұрын
Thanks, man! Did you ever wonder how much the power output from an AC incandescent bulb varies with time? The temperature must be quite stable, because power radiated goes like T^4.
@Benlarsendk
@Benlarsendk 10 жыл бұрын
Doc Schuster No, but I kinda do now.
@DocSchuster
@DocSchuster 10 жыл бұрын
...excellent. [mysterious, slightly evil laughter]
@Hassanw9
@Hassanw9 9 жыл бұрын
man im so glad i found you i have a electrical quiz in 2 days and exam in 8 days, I've learnt more here than i have in like 5 lectures... appreciate your work, defo subscribing
@godwinenochvalron
@godwinenochvalron 9 жыл бұрын
Hassan Waris​ 😂 mine is on Thursday bro
@Hassanw9
@Hassanw9 9 жыл бұрын
godwin enoch how come??
@godwinenochvalron
@godwinenochvalron 9 жыл бұрын
Hassan Waris​ 😂 😂 you over slept bro
@GlyturElsa
@GlyturElsa 9 жыл бұрын
+Nathaniel Weaver exam tmorow, beat that!!
@nour4816
@nour4816 9 жыл бұрын
+Glytur Elsa Exam in 4 hours.
@jfht318
@jfht318 6 жыл бұрын
I have just started my electronics engineering at one of the worlds so called "top " universities, and I have struggled so much in keeping up with the course as they expect you to just know everything and do not explain things properly. I stumbled across this video and you explained this topic in such a beautiful way that I can finally appreciate what a phaser is and what the rms is. you could put a top professor to shame that is how good you're teaching is. Please continue your amazing work. Just goes to show that these universities are just great by name but when it comes to actually teaching their horrible waste of time and money. Most importantly thank-you for making learning fun and not a tedious regurgitation of knowledge where we do not know what anything does but we just memorise.
@salvadorbravo5797
@salvadorbravo5797 Жыл бұрын
which university is this
@FlorianP98
@FlorianP98 9 жыл бұрын
You are a great teacher. Thanks for making eveything easier and more visual than my educational system does :D
@JonathanTolman
@JonathanTolman 5 жыл бұрын
Writes with crayola, teaches logically with the right bit of fun, you make learning fun again.
@hydroslf
@hydroslf 11 жыл бұрын
i thought i heard "screwed", but then it was sqrt. phew. You're a savior! This helped me a lot! Thanks!
@davidnelson2696
@davidnelson2696 11 жыл бұрын
I teach an electrical apprenticeship and have found your videos to be a great resource. You are a fantastic teacher! Thank you so much for your efforts here!
@goku1863
@goku1863 9 жыл бұрын
You make Physics so much interesting! Thank you Sir! Crystal clear concepts!
@goku1863
@goku1863 9 жыл бұрын
And Thanks for the indian shoutout :D
@thatonegirlt
@thatonegirlt 10 жыл бұрын
This at 1.5 times is even more amazing. Thank you.
@nicolearguelles4535
@nicolearguelles4535 10 жыл бұрын
You really make up for the lousiness of my AC electronics teacher. Thank you! Oh, and your pronunciation of square and square root is adorable.
@aya0shoaib
@aya0shoaib 8 жыл бұрын
I have an oral exam tomorrow and your videos saved me, thanks!
@jameslennard4062
@jameslennard4062 10 жыл бұрын
these videos are so helpful. seriously i didn't get this stuff after weeks of practise at A level, but now I'm revisiting it at University you've helped me learn this in 10 minutes
@DocSchuster
@DocSchuster 11 жыл бұрын
I agree with what you've said. My phasor for Vmax is pointing in some arbitrary direction, so it represents V at some arbitrary early time, as you've said! However, I call the phasor Vmax because that is its length AT ALL TIMES. If that makes sense, you are ready to rock phasors.
@junior214223
@junior214223 9 жыл бұрын
This guy is sassy, I like him. You and Lasseviren1 have saved my grade
@devonlegge2669
@devonlegge2669 10 жыл бұрын
I learned more about math from you in the first 11 mins then I think I ever have in my whole life. Everything is seeming to make sense now.
@DocSchuster
@DocSchuster 10 жыл бұрын
Yay! Math is love!
@AnimsOnDemand
@AnimsOnDemand 7 жыл бұрын
I know this is an old video but I dislike all the comments about you being on drugs because you're "too enthusiastic". On the contrary, I loved it! This was super helpful and I'm at the start of my AC analysis class. Thank you for making this!
@MahinMundra
@MahinMundra 9 жыл бұрын
Haha you dropped the squur around 7:43. :P Great videos by the way. Thank you so much for making them.
@lalnazochasev3082
@lalnazochasev3082 9 жыл бұрын
A shout out to india? I love you even more now! You're a really good professor! Also, sqrt.= scroot? Lol you the best!
@rafay_syed
@rafay_syed 11 жыл бұрын
Thanks so much! I have a physics exam coming up in three days and I was confused on AC circuits. This video clarified so much for me! I am subscribed :)
@DocSchuster
@DocSchuster 11 жыл бұрын
I'm glad to have you! Go get that exam.
@Drkofta
@Drkofta 6 жыл бұрын
man, when you said "hello everybody in India!", my eyes just shined really bright. i can't represent every guy in here, but, i personally LOVE your work! cheers! wish you all the luck.😜😜😜
@gotmoreO
@gotmoreO 10 жыл бұрын
Your enthusiasm makes learning fun. I just started AC and it's giving me a bit of trouble, but alas! The Doc is here to help!
@MuddyNikes
@MuddyNikes 5 жыл бұрын
Thank you for the lesson, it really helped me. You are a gentleman and a scholar.
@satyarthsingh7011
@satyarthsingh7011 7 жыл бұрын
Wonderful mate..my friends in india are loving your teaching..good job
@DocSchuster
@DocSchuster 11 жыл бұрын
You bet, and I'm glad they're helping. Electricity is one of my very favorite physics topics!
@rathnamegha5330
@rathnamegha5330 4 жыл бұрын
I have my final exam tomorrow. Thankful is an understatement!
@SuperZbx
@SuperZbx 7 жыл бұрын
Feels like i am watching saul goodman teaching physic while watching ur vid, great tutorial man saved my ass on the final!
@MrGabooooooo
@MrGabooooooo 11 жыл бұрын
Great video! I would highly recommend including links in the description to your other videos continuing on from here, this way people can watch several of your videos on a topic with ease.
@alevelsdemystified3410
@alevelsdemystified3410 6 жыл бұрын
Loved the yeep sound effects!A solid thumbs up!!
@ziruizeng9402
@ziruizeng9402 5 жыл бұрын
best teacher ever. you make learning physics so freakin exciting lol
@modestolivetree1857
@modestolivetree1857 7 жыл бұрын
If I were a good professor like you, I would be such happy guy!
@LopserGaming
@LopserGaming 7 жыл бұрын
Ur a champ had a lecture the day and didn’t get it at all, but this really helped!
@BioDynamicIndustries
@BioDynamicIndustries 10 жыл бұрын
This channel is great! You gotta love the professional crayola markers. :p
@JC-bq9oh
@JC-bq9oh 6 жыл бұрын
Thanks Doc Schuster, I was looking a video to refresh me the AC principles , and this video was the best.
@crhee2074
@crhee2074 9 жыл бұрын
Why can't all professors teach like this.
@JulioCaesarTM
@JulioCaesarTM 7 жыл бұрын
C Rhee bcus they hate their jobs
@davialbuquerque4964
@davialbuquerque4964 6 жыл бұрын
University of Victoria, British Columbia, Canada
@Bernardus_McJamesicus
@Bernardus_McJamesicus 2 ай бұрын
best explanation i have found so far. Thank you so much!!
@izukishun9757
@izukishun9757 5 жыл бұрын
oh this is really helpful and hilarious. especially when you called every variables there as 'suckers'. thank you
@egogoalie42
@egogoalie42 11 жыл бұрын
"Scroot it..." I'm stealing that phrase, thank you
@DocSchuster
@DocSchuster 11 жыл бұрын
Please, share the love! Ain't nobody got time for that.
@MetalHeadMarc
@MetalHeadMarc 4 жыл бұрын
It's changed how I'll talk about math not for the rest of my life.
@tongjumy
@tongjumy 10 жыл бұрын
what an awesome way to teach circuits your voice is very fun to listen to as well
@sumedhmhaiskar419
@sumedhmhaiskar419 7 жыл бұрын
Hey Doc schuster , you present these complicated things in such simple and innovative ways it just makes me wanna love things even more and more....
@TearHerWrist
@TearHerWrist 10 жыл бұрын
Half way through your video and I can already say its amazing! Well done :)
@DocSchuster
@DocSchuster 10 жыл бұрын
Thanks, Ali!!
@adntubecnn7673
@adntubecnn7673 4 жыл бұрын
Sir, greetings from Romania, by far one of the best educational video about AC, RMS...sir you have indeed a lot of patience, unfortunatley my university proffesors are lacking this kind of skill and interest, they just read the power point....i wish you all the best and keep up the good work!!!!
@BboyDaquack
@BboyDaquack 10 жыл бұрын
lol you say "screwt" and "sqwur" for square root and square haha anyway great video saving my life in physics.
@fadsmfawopefaw
@fadsmfawopefaw 10 жыл бұрын
no - he's saying sqrt and sqr like on a calculator :p
@MetalHeadMarc
@MetalHeadMarc 4 жыл бұрын
I can't believe I haven't been using that way to say it for so long. It saves so much time, I was all screwted.
@martinda7446
@martinda7446 7 жыл бұрын
Skroot....Gotta say this is brilliant. In the first few moments I thought, 'this is going to be rubbish', but wallop it grew quickly to max coolness.
@sanjaykarki6303
@sanjaykarki6303 9 жыл бұрын
Ryan Reynolds probably took vocal lessons from this guy.
@photon2724
@photon2724 5 жыл бұрын
dude. You made this video 10 times better, cos now I'm thinking Ryan Reynolds is teaching me electrical engineering.
@nipunparadkar9458
@nipunparadkar9458 11 жыл бұрын
You guys could make another world if this ends!!! LOL... Proud to be your student...
@annasarahkramerfazendeiro8030
@annasarahkramerfazendeiro8030 5 жыл бұрын
Sounds like me explaining things to myself, only I couldn't explain AC circuits to myself because I didn't understand them. Thanks for this lovely video!
@caseymathieson7023
@caseymathieson7023 11 жыл бұрын
Vmax is the magnitude of V. Got it! Great video thanks for the help!
@wtfchazpwnt
@wtfchazpwnt 5 жыл бұрын
This is a truly beautiful explanation. Thanks for taking the time to make this vid.
@aeirya1686
@aeirya1686 4 жыл бұрын
oh even tho i knew these stuff i watched this vid. I LOVE the way you teach. wish you lots of luck! :p
@nipunparadkar9458
@nipunparadkar9458 11 жыл бұрын
Thank You!!! I am also Indian... Also I like the way you teach... It's just AWESOME!!! Love you brother... Keep up with your videos... It helps many of the students...
@GlyturElsa
@GlyturElsa 9 жыл бұрын
Doc, You are a life saver..No Kidding!
@KenMac-ui2vb
@KenMac-ui2vb 11 жыл бұрын
These are absolutely incredible. Awesome instruction. THANKS !!!
@claudialamontagne
@claudialamontagne 11 жыл бұрын
Makes me like physics and you saved my semester! Thanks!
@DocSchuster
@DocSchuster 11 жыл бұрын
Woot. If you like physics, then we have that in common!
@SimranDhillon6821
@SimranDhillon6821 11 жыл бұрын
slowly saving my degree as well :P
@DocSchuster
@DocSchuster 11 жыл бұрын
You've got so much time on your hands that you say Square Root? Consider yourself lucky. I'm a busy man.
@elishaelisha7911
@elishaelisha7911 4 жыл бұрын
LOL
@sarthakrawat7748
@sarthakrawat7748 4 жыл бұрын
Why not just root Why add square
@montypython3014
@montypython3014 3 жыл бұрын
Why not find avg of the absolute value of sin instead of sqr of it?
@muhammadhussainsarhandi9928
@muhammadhussainsarhandi9928 3 жыл бұрын
@@sarthakrawat7748 we say square root because you can also take cube root, 4th root . . . nth root, so we say square root in order to clarify that we are not taking any other root,
@gordtvradio3465
@gordtvradio3465 3 жыл бұрын
The way you say it is like nails on a chalk board though. Maybe it sounds cool to a girl in high school
@pamellaviana4096
@pamellaviana4096 5 жыл бұрын
omg, you have so much passion teaching, that is amazing! i wish all my teachers were like you!
@jamilladambo
@jamilladambo 6 жыл бұрын
Thanks for explaining the math concept behind the rms value. Most people just throw it out there with no reason as to what that means or why it’s important
@elizabethvanek3164
@elizabethvanek3164 9 жыл бұрын
So much easier to understand than class lectures! Its a bit quirky, which makes it fun and enjoyable to watch! Sqr... lol
@jelle31
@jelle31 6 жыл бұрын
love the way you explain, just keeping it active and interesting!
@muzammilali8686
@muzammilali8686 9 жыл бұрын
from today you are my teacher
@Renji_Abarai
@Renji_Abarai 7 жыл бұрын
*OMG THIS GUY'S SO SMART AND RELATABLE TO ME!*
@wilsonlough8520
@wilsonlough8520 9 жыл бұрын
squuurrrrrr
@leytonzhang5607
@leytonzhang5607 5 жыл бұрын
skroooot
@VoidHalo
@VoidHalo 5 жыл бұрын
lol You beat me to it by 3 years. =P
@jimcar53
@jimcar53 3 жыл бұрын
strange!
@NovaWarrior77
@NovaWarrior77 4 жыл бұрын
Yo my knowledge of AC current went from 0 to 100. Preciate it good sir.
@FunOrange42
@FunOrange42 7 жыл бұрын
Thanks, my prof was using phasors all over the place and I didn't even know that they represent sine waves in the way that you showed.
@yanivgardi9028
@yanivgardi9028 3 жыл бұрын
Your videos are brilliant! You make everything sounds so simple...
@sylviaeppel1787
@sylviaeppel1787 7 жыл бұрын
Hi there! I'm busy studying for my finals and your videos have really helped. Thank you!
@LazaroCarvalhaes
@LazaroCarvalhaes 11 жыл бұрын
Man you're amazing! Seriously I feel like I owe you a beer
@DocSchuster
@DocSchuster 11 жыл бұрын
Thanks, man! Where can I go to collect?
@raviankitaava
@raviankitaava 11 жыл бұрын
People like you are always welcome to India..... :)
@paolorodriguez2640
@paolorodriguez2640 4 жыл бұрын
bruh he is coooool, Thank you sir, greetings from the Philippines
@shady4065
@shady4065 3 жыл бұрын
I might pass my final tomorrow because of you, thank you sooo much
@floorlast6107
@floorlast6107 9 жыл бұрын
Since Phasors is an entirely new concept i thought you would explain it with a fresher sort of clarity so as understand it much better....Although rest things are just good..including your background music ...video is appreciable ...Cheers...!
@udasgupta601
@udasgupta601 9 жыл бұрын
you made studying fun.... thank you... this video is really helpfull
@MontanaPreston
@MontanaPreston 4 жыл бұрын
Excellent presentation! Thank you for spending your energy making this for us, it was very helpful! A+ in life
@altuber99_athlete
@altuber99_athlete 6 жыл бұрын
4:10 Wrong definition. Phasors _aren't_ vectors that are constantly rotating. They are static. The don't depend of the time (in fact that's why they are from the frequency domain and not from the time domain). The "thing" (factor) that makea them rotate is _e^jωt,_ but not the phasors themselves. Besides that, I think everything is correct. Great video!
@DocSchuster
@DocSchuster 11 жыл бұрын
Totes. Thanks for watching and tell your friends and your mom that physics is cool.
@Hekrov
@Hekrov 8 жыл бұрын
what an awesome video/explanation!!! keep the good work
@mattbackvass
@mattbackvass 9 жыл бұрын
holy crap "sqrt it" - so awesome. i am stealing that.
@DocSchuster
@DocSchuster 11 жыл бұрын
No, YOU are awesome! Keep it up!
@ayadimishra
@ayadimishra 8 жыл бұрын
That was fun! Thank you for this!! I'm gonna binge watch physics vids now LOL
@squidpq
@squidpq 10 жыл бұрын
Doc, I really enjoyed and appreciated this video (and all of your other videos for that matter). I have found your videos to be a good primer for the topics we cover in my class. Keep up the good work.
@DocSchuster
@DocSchuster 10 жыл бұрын
Thank you, sir!
@faria5179
@faria5179 8 жыл бұрын
Best video so far! loved the energy :)
@AtoZ_Reviewer
@AtoZ_Reviewer 7 жыл бұрын
nice energy while teaching.. Good work.
@gulshanthakuri797
@gulshanthakuri797 5 жыл бұрын
Thank you for the video.. And much love from India.. 🙏
@adrianvintila5077
@adrianvintila5077 5 жыл бұрын
Grown man that makes is own soundtrack. Got to love it 😂😂😂
@muralir2140
@muralir2140 9 жыл бұрын
Wow... . . u rocks man. . . .. very very very very very very helpful. . . thnks. . . 😂😂
@CoronaRay1
@CoronaRay1 11 жыл бұрын
Great job. Love your enthusiasm! I can tell that you really enjoyed making that video. :)
@LeKuZi000
@LeKuZi000 10 жыл бұрын
U saved my days....it's really cool
@rojer1182
@rojer1182 9 жыл бұрын
wow...This was really helpful...but I really wanted to know more about phasor diagrams and how to solve phase difference problems...
@GuardianLancer
@GuardianLancer 9 жыл бұрын
Thanks Sir, from Egypt.
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