GCSE Physics - How the Electric Motor Works #80

Рет қаралды 343,514

4 жыл бұрын

This video covers:
- How the electric motor uses electricity to create rotational motion
- A quick recap of the motor effect and Fleming's left hand rule
- How a split-ring commutator works
- Where electric motors are used
- How to increase the speed or strength of an electric motor
Exam board specific info:
AQA - Higher tier only
IGCSE Edexcel - Everything is relevant to your course
Edexcel - Higher tier only
OCR 21st Century - Higher tier only
OCR Gateway - Higher tier only
Maths Playlist:
kzfaq.info/sun/PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh
GCSE Chemistry playlist:
kzfaq.info/get/bejne/nLRonqtqu9zVn2Q.html
GCSE Biology Playlist:
kzfaq.info/get/bejne/Y5OUfKWa07vIlYk.html
GCSE Physics Playlist:
kzfaq.info/get/bejne/l66GfcmD3culqKM.html

Пікірлер: 173

@livxsii1022 18 күн бұрын

i didnt have a clue on this topic but this video was an absolute life saver

@x_nabeeha193 18 күн бұрын

saved my life before tomorrow

@Plodiacccc 18 күн бұрын

question - does the coil get stuck at 90 or flip at 180 degrees

@x_nabeeha193 18 күн бұрын

@@Plodiacccc without a commutator it flips at 180

@darkrebel5520 2 жыл бұрын

Thank you so much for this video. It's so incredibly helpful and I learned more from this in just 5 minutes than I did from an entire lesson of work.

@shanzarasool6755 2 жыл бұрын

You made me understand this topic in just some mins... I was trying to learn it throughout a month. Thankyou so very much. May God Bless you ..

@arshamshirkouhi 2 жыл бұрын

i have been trying to learn this for weeks if not months and here you come saving the day :D my lecturer doesn't know how to explain it in like 10 lectures properly and now I get everything about it hahahaha thank you :D

@ihsan4506 4 жыл бұрын

damn lol i was excited to use everything i learnt from these videos on my exams but nvm theyre cancelled smh

@nikhilkanade3871 3 жыл бұрын

your editor needs some good pay

@Cognitoedu 3 жыл бұрын

Agreed - She’s the MVP 🌟 🌟🌟

@nikhilkanade3871 3 жыл бұрын

@@Cognitoedu well she is the best out there, i mean seriously dude thats some lit stuff. Love it!

@shaheerali7382 Жыл бұрын

@@nikhilkanade3871 bro MVP full form???

@abdullahbinmasood9671 3 ай бұрын

@@shaheerali7382 most valuable person

@yaj9349 18 күн бұрын

@@shaheerali7382 Most Valued Player

@izzymarie3886 Жыл бұрын

im not even revising im learning

@starrrlover 4 ай бұрын

me too bro me too

@NextGeneration_21 Ай бұрын

😭💀

@hiba5816 18 күн бұрын

same 😓

@tomadshead6133 Жыл бұрын

Thank you so much, my teacher literally skimmed over this whole topic in class and this well explained and concise video really helped me understand this portion of the course before friday's exam.

@Cognitoedu 2 жыл бұрын

If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform - cognitoedu.org/coursesubtopic/p2-gcse-aqa-h-t_6.05. The platform’s totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

@eze-247 2 жыл бұрын

Can you please release a video explaining how the motor effect works in Loudspeakers, I still find it very tricky to comprehend

@mog6667 Жыл бұрын

defo one of the hardest concepts to grasp in gcse physics but you explained it so well :)

@Jaffacakemf 6 ай бұрын

Ive been stuck trying to wrap my head around it for the last hour but this vid helped a lot lol

@muz_3004 2 жыл бұрын

Hi Cognito, you are amazing! I really understand everything that you teach in Biology, Chemistry, Physics and Maths. Truly a gem! I was wondering whether you are going to do videos on A level content, for example A level Biology, Chemistry and Maths.

@minonarambewela7573 Жыл бұрын

Thnx bro. I decided to pay your site a visit and I have to say this helped a lot!

@failureforlife3977 3 жыл бұрын

Ohh my goshh after watching a lot of videos about d.c generater i finally understood the freaking concpt 😭🥺

@bigboyshenoy9921 Жыл бұрын

god bless you brother your videos are insanely helpful

@me_sad 8 ай бұрын

Amazing video. I can't believe it took just 5 minutes for me to understand a concept that I spent nearly a year struggling to understand it.

@corrupted_user258 2 жыл бұрын

wow thank you so much for making this topic look so easy!

@C_captain 3 жыл бұрын

Nice video dude, this really helps 👍🏾

@justgames7608 9 ай бұрын

Thank you. It really helps to understand the topic ☺

@user-dx5wt1hx9t 3 ай бұрын

Omg, thanks so much. After watching a few videos in order, I have this satisfying feeling of understanding ❤ subscribed , fully deserved

@Horologica 3 жыл бұрын

Thanks alot, it was hard to make sense of this when it was purely in text form in the books

@descize 2 жыл бұрын

Very useful! But can you please upload a video about alternators and dynamos?

@luca864 Ай бұрын

i love you man youre saving me right before my tests

@samisadik 4 жыл бұрын

Just cleared all of my doubts. Thank you all who made this video.

@malihnamps 8 ай бұрын

Best explain video ever although I had to watch twice to fully understand thank you 😊

@zipin5165 Жыл бұрын

ty, i finally understood the commutator and how it works

@a2editz605 2 жыл бұрын

I seriously owe you a massive thanksgiving! You literally made me understand the whole thing in 5 mins! Thanks man!

@ryanbeh8523 2 жыл бұрын

Thanks a lot, even my science teacher recommended your channel

@maryamehab2326 Жыл бұрын

this was very very helpful thank you

@alialam1893 Жыл бұрын

Brilliant❤ so helpful honestly

@isabellecrabbe9992 2 жыл бұрын

Best video for this topic. Omg for once even free science lessons couldn’t help me 😩

@Eezkiel 2 жыл бұрын

Fr tho :D

@danbdatsme 6 ай бұрын

Excellent work

@shernizeluce66 Жыл бұрын

i couldn't be more thankful to you !!! thank you so much for making this video !!! i understood it immediately !

@Cognitoedu Жыл бұрын

You're very welcome Shernize!

@fungusz_4292 Жыл бұрын

@@Cognitoedu So does this mean then that the circuit attached to the commutator rotates alongside the coil to keep it moving?

@rizwanaziz2617 Жыл бұрын

@@fungusz_4292 i dont think so, the commutator is the one that makes only the coil rotate every half turn

@itsme-jb9eb 2 жыл бұрын

OMG TYSM I ACTUALLY UNDERSTAND THIS NOW

@LEARNINGCUBSOFFICIAL 2 жыл бұрын

It is really good. If you could increase the audio quality it would be the best

@marahalsabbagh3793 2 жыл бұрын

thank you so much your videos are so amazing and they really helpful

@raisin4406 3 жыл бұрын

So well explained, thank you!

@HiMeee993 Жыл бұрын

Physics paper 2 tmr and this literally saved my life i didn't understand this topic for the past year till i saw this video thankyou soooo much!!❤️

@kennethajit6709 3 жыл бұрын

Congrats on 100k

@bmn1064 8 ай бұрын

I got my test tomorrow and u literally saved my life 😭

@dipeshpatel7687 4 жыл бұрын

great videos, especially during lockdown!

@somyagarg2811 3 жыл бұрын

Thanks for the clear explanation!

@fungusz_4292 Жыл бұрын

So does this mean then that the circuit attached to the commutator rotates alongside the coil to keep it moving?

@ramkkumar4608 3 жыл бұрын

Thank you so much.. Clear explanations of coil rotation

@Rzs.254 Жыл бұрын

love ur content

@isabellecrabbe9992 2 жыл бұрын

Hi, but is it really an “upwards” force if when it gets to the top it begins to move downwards and vice versa?

@liyonalidet296 2 жыл бұрын

Thank so so much

@damsh._mary Жыл бұрын

Thank u this was beautiful

@user-lc4uz5iy1p 2 ай бұрын

Good video my pal

@mithilagunarathne7543 Жыл бұрын

Thank you very much 🙏🏻

@syedarhuss 4 ай бұрын

So when the current reaches the end of the plot ring commutator does it jump to the other side to prevent switching of terminals

@sojoodmohammed9008 Ай бұрын

Thank you

@eze-247 2 жыл бұрын

Can you please release a video explaining how the motor effect works in Loudspeakers, I still find it very tricky to comprehend

@bullymaguire3895 Жыл бұрын

whether you like him or dont like him theres nothing you can do, cause hes number one, whether you like him or dont like him theres nothing you can do cause hes number one. thats hes the GOAT.

@humairasultana2050 3 жыл бұрын

This video is great 👍💖

@aaronrussell4608 4 жыл бұрын

Excellent videos , all my students find them useful, thanks

@mohammedluay9351 Жыл бұрын

Our teacher showed us this in class hi everyone

@Biggest_baller 3 жыл бұрын

This helped me because when things are illustrated i understand more,,,,, and this animation is so pretty Thank u cognito i owe u my LIFE

@damilolasotomi886 6 ай бұрын

thank you for this

@RyanJones-dm6oy Жыл бұрын

doing the LORDS work my guy !!!!!

@mysteryboxxd7897 2 жыл бұрын

JazakAllah

@wonjpg 7 ай бұрын

bro i love you so much man

@zarajannat2090 3 ай бұрын

Y'all teach better than my physics teacher

@abdulllllahhh 3 жыл бұрын

You guys are life savers 🙏

@Riya-bf2ek 3 жыл бұрын

Hello Sir, I just wanted to know if your videos covered absolutely everything you need in the exams. As I love your videos and I understand it really well, but I'm not sure if I have learnt everything just by watching videos.

@koubrrr 2 жыл бұрын

THAKN YOU SO MUCH MY O LEVELS ARE IN 7 MONTHS AND IM STILL NTO SURE HOW THIS WORKS SO THANK YOU THE ANIMATION WAS REALLY GOOD AND SO WAS THE EXPLANATION

@Cognitoedu 2 жыл бұрын

THANKYOOU FOR WATCHING 🙏

@eze-247 2 жыл бұрын

@@Cognitoedu Can you please release a video explaining how the motor effect works in Loudspeakers, I still find it very tricky to comprehend

@Samantha0702 7 ай бұрын

Which app do you use for editing?

@daliagrantham8423 3 жыл бұрын

this is the only video that made it make sense!! Thank you so much

@Cognitoedu 3 жыл бұрын

Glad it helped!

@eze-247 2 жыл бұрын

@@Cognitoedu Can you please release a video explaining how the motor effect works in Loudspeakers, I still find it very tricky to comprehend

@GCSEPhysicsExplained 4 жыл бұрын

Great video!

@vahagnmelikyan2906 2 жыл бұрын

Like your videos ,but I set it up at 0.75 speed. It sounds perfect for understanding.

@educator6512 Жыл бұрын

Tysm!

@toriqulislam1351 11 ай бұрын

What does that half turn means? 2:55

@alyaisswag1443 3 жыл бұрын

These videos are so useful keep it up bro 💕💕

@kookiekira 2 ай бұрын

as a science student idk what i would do without cognito, they deserves more recognition 😭

@mohammednaqi5166 2 жыл бұрын

يا ريال تشرح احسن من freescience lesson

@phasorsystems6873 3 жыл бұрын

Build your electrical circuits on the go! Type circuit solver on the playstore!

@googlestealmydatapls5410 4 жыл бұрын

This really is so helpful, thank you

@VINODDEOKAR 3 жыл бұрын

sir aap mahaaaaaann ho

@Dahu_7 2 жыл бұрын

god bless you sir

@_rafayahmad 3 жыл бұрын

very helpful, thankyou

@mohammadjahangir7401 2 жыл бұрын

Thanks a lot for making this video. I'm a bit confused though, how does the coil manage to turn 180 degrees without the commutator at 1:31. At 90 degrees, the coil is supposed to stop rotating as the forces are vertical and there is no perpendicular distance from the centre of the coil. Even if there's inertia and the coil rotates beyond vertical, the forces will push the coil back to the vertical position. Also, every textbook says that the commutator reverses current in the coil at 180 degrees but it's actually at 90 degrees; when the coil is vertical. Please help me out

@frc69 2 жыл бұрын

i think your getting confused with a generator

@a2editz605 2 жыл бұрын

Ok, as far as I understood, the commutator breaks up the circuit at 90 degrees since it's vertical but moves on due to its motion and reattaches the circuit at 180 degrees. However, that coil at 1:31 is probably just a cell attached to a coil, rendering the breaking up of the circuit impossible, so it goes on to move 180 degrees and stops as the current direction changes.

@harjapp 2 жыл бұрын

I don't think we have to know it in that much detail, just that a plot ring commutator is used in a motor, which changes the current every half turn, which means that the coil will rotate in the same direction, allowing a motor to be created. In terms of why it keeps spinning when not touching the terminals, there is momentum which means it stays spinning, and then as soon as it touches the terminal, the current is reversed allowing it to continue spinning the same way.

@harjapp 2 жыл бұрын

split ring commutator*

@Aditya-hy7up 3 жыл бұрын

why conventional current and why not the actual one???????????

@kiminoto09 6 ай бұрын

Better than my physic teacher

@saadsohail4690 Жыл бұрын

so how is this different from an ac, I mean if the current keeps changing, shouldn't it be called an AC motor ?

@Shnyamahmood Ай бұрын

I’m in 7th grade I don’t understand anything in the book but ur vids the best

@LittleMixer-dy2lb 3 жыл бұрын

this helped so much thank you!!!!!

@lisbanks4250 2 жыл бұрын

This was so helpful, I also love your videos😁

@Cognitoedu 2 жыл бұрын

Glad you like them! 😊

@eze-247 2 жыл бұрын

@@Cognitoedu Can you please release a video explaining how the motor effect works in Loudspeakers, I still find it very tricky to comprehend

@wasaywasay4470 Жыл бұрын

Bro u need to open a school

@Quanta_i-guess 3 жыл бұрын

tbh, I understand this completely, but I for the love of the subway I can't explain how a split ring works BUT I KNOW HOW IT WORKS

@aircrow9 2 жыл бұрын

Holy Fuck thank you so much u don't know how much u helped me

@Log1eI3ear 2 ай бұрын

2:26

@user-uf4vn8oh3h Ай бұрын

We use this WeiRd deViCE!

@ryantamehzabin4091 4 ай бұрын

1:02

@deemedepic7721 3 жыл бұрын

Cognito, I don't understand - what is the purpose of the split ring commutator?

@lispgirl7666 3 жыл бұрын

It changes the direction of the current so the forces act in the same direction allowing it to turn 360

@deemedepic7721 3 жыл бұрын

@@lispgirl7666 So is this to produce AC current?

@deemedepic7721 3 жыл бұрын

And would it not be turning 180°?

@doctorwilde7046 3 жыл бұрын

@@deemedepic7721 No. This is a motor, not a generator. It does not produce current but uses the energy from the current to produce motion.

@doctorwilde7046 3 жыл бұрын

@@deemedepic7721 once it turns through 180 the current needs to be reversed. It is facing the opposite way now so that the electromagnetic forces would push the motor back the way it came if the current stayed in the same direction.

@yadeelbezuayehu5901 3 жыл бұрын

OK let me tell u something I was having a rough time getting this and in our country final is in 2 days but thanks too u I understood it well Keep it up Broo

@emmanuelthwala2809 3 жыл бұрын

thank you JESUS bless you man and HEs coming

@mrnobody6438 2 жыл бұрын

Wow u need to slow doen there chief Just say thanks and move on

@mayahelenavarsani 3 жыл бұрын

Hi, I do have a question - does current flow from positive to negative, or negative to positive? Everywhere I look the answer is different... thank you!

@Cognitoedu 3 жыл бұрын

Yeah it's a bit weird. Basically the electrons from from the negative terminal to the positive terminal, but we actually say that the current (or conventional current) flows from positive to negative. We explain it in our 'intro to circuits' video :)

@mayahelenavarsani 3 жыл бұрын

@@Cognitoedu thank you so much - this is so helpful!!!

@eze-247 2 жыл бұрын

@@Cognitoedu Can you please release a video explaining how the motor effect works in Loudspeakers, I still find it very tricky to comprehend