GCSE Physics - Generator Effect / Electromagnetic Induction #81

[@kenmc1448]

This is probably the simplest and clearest electromagnetic induction explanation I have ever heard. Bravo!

[@Cognitoedu]

Ah thank you Ken, glad it helped 😊

[@Tayyaba-kb1kp]

❤​@Cognitoedu

[@alanaknox49]

this is great-- my teachers keep making us watch freesciencelesson videos but im gonna tell them about this, such an easy to understand presentation of the info!

[@Cognitoedu]

Thanks Alana 🥳

[@yj5160]

Ikr those are shitty idk why so many teachers are so goddamn obsessed with them tsk tsk Edit: my bad for condemning freesciencelessons. Just because it's slides are a little outdated in design doesn't mean it's bad.

[@superman2957]

@@yj5160 blasphemy

[@krish4134]

@@yj5160 hey, freesciencelessons isn't bad; both are equally good teachers, u should respect both of them.

[@camalex7782]

@@krish4134 but this guy has better graphics

[@AbhayHero11]

Every lesson is less than 5 Mins with great explanation

[@ajarnjohnieltsbangkok3305]

The amount of expertise and effort you have put into all of your videos is truly stunning!

[@hhanaaaaaah]

how can this channel be so underrated. Make use of these sources! its not 2010 anymore, we can learn through amazing channels like this...

[@xosbabymama4703]

I hate magnetism

[@popopopopop45]

I've been trying to understand it for the past two weeks and don't understand anything

[@artmakeslifebeautiful8594]

Same

[@naweee911]

@@popopopopop45 i have good notes for it if u want i can mail it to ya

[@Tils17]

Bro woke up and decided to spit fax

[@Abxhj2939sjsj]

Worst topic by far

[@Cognitoedu]

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_6.06. 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

[@Big_Topic]

Thank You!

[@FroggyNipNips]

please make this an app

[@a.7034]

Literally watching a day before my igcse p2 💀 and you explaining so easily! THANKS A TON! 😭❤️❤️ And I owe my igcse-s to you, cognito.

[@zeyunde]

same here-

[@NasirRaza-ks9yi]

Glaze

[@ComicAgate]

What rssult did you get?

[@a.7034]

@ComicAgate 9. I'm not kidding and I was the most happiest about it.😭❤️😭

[@hero303-gameplayindonesia8]

9 in physics is crazy

[@chiarageeraerts5673]

you deserve milions of views your videos are so good and make it so much easier to understand, thank you

[@Cognitoedu]

Thank you Chiara, we really appreciate it 😊

[@chxrry.blxssms5303]

4:37 love the brief pause here

[@jasminephillipson7421]

The animation and voiceover together make it so easy to understand.. :)

[@felixgillet8957]

Life Saver! I have my Physics Mock tomorrow and this is the one topic I dont understand !

[@charliestuderschrader8365]

Mans got knowledge and that now

[@petrapinter349]

Love this channel. Everything actually makes a lot more sense Free science lessons is all I’ve been recommended but the visuals in this>>>✨

[@فلسطينفيالقمة]

ur the best could have not gotten all 9's without u

[@khalidhijazi7338]

very simple, straight to the point and flawless explanation.

[@AS-rq6tr]

This channel >>>>>>>>>>>>>>>>>>>>>>>>>>

[@natalie588]

This video has helped me so much. Thank you! :)))

[@somyagarg2811]

Are you going to make/is there a video about the Alternator and the Dynamo?

[@ChandanDas-gl7ij]

no he is not

[@xMurdererr]

⁠@@ChandanDas-gl7ijthere’s a non-video lesson on alternators and dynamos on the cognito website

[@nilanjanabose7095]

You ave a great skill of explaining things!

[@mbt1845]

Hello! Thanks for the video. Very informative. When the conductor is completed to a circuit, and the circuit is moving up, the current should flow in the opposite direction that you are showing in the video.

[@YvesLuyens]

I agree with you, the negative charges are pushed to the opposite direction of the current, which means that the electrons are going from + to -. This induces e.m.f, just like a battery and in a battery, current flows from - to +

[@LynxMajic]

Love your explanations, simple but they cover key facts. :)

[@youa._]

Thank you so so much for this simple presentation. I'm just wondering, how can you figure out which way the current is going? My teacher taught me some hand things but idk.

[@mr.random8370]

you explain great.. thank you.. i understood 2 topics from you.

[@memoonaqamar6657]

Best physics channel

[@Zllilx]

tysm helped me to understand the concept

[@DelayEdits]

This might sound be a very obvious answer to the question, since it is in the title, but this is this the same method in which a generator works? Just wanted to know so it will help me visualise it better 🙂🤘

[@parijat8166]

Yes! Since the potential difference keeps changing, an a.c (alternating) current is produced, and this is the current that is usually used in mains electricity, for example.

[@PiyushRobotics]

can we please get this channel to 1 millon subs

[@zawhtet7323]

Good presentation. Thanks. 🎉

[@calcpost3641]

@Cognito thank you so much, finally beginning to understand this topic!

[@Cognitoedu]

You're welcome CalcPost, glad they're helping! 👍

[@calcpost3641]

@@Cognitoedu Sir when you say " a change in magnetic field' is that the same as the coil of wire cutting the magnetic field lines? or are they different.

[@jalapenoandbanana]

Amazing video, I was able to become a NASA engineer in 6.9 seconds!

[@PrincessElizabethBah]

Not me watching thhis hours before my physics exams

[@athenaaneesh6568]

I absolutely love your videos... Is it possible to make videos on alternators and dynamos?

[@lochanarajapaksha4054]

Love it. Made me understand the lesson 100% Thanks a ton 🙏🙏

[@sulekghose]

i have my igcse's in 5 days , this really helped me a lot

[@theimperialfistsspacemarin3050]

Hope they go well mate, have my assessments on the 15th

[@jannatulnaima5238]

IDK WHY MY TEACHER CANT TEACH LIKE THIS TYSM FOR TEACHING US IN EASY WAY

[@Krishna-qg2gt]

Bro if cognito was a candy it would be lifesavers

[@ssgaming3238]

Thankyou too much it is helping me in my exams which Is tomorrow

[@johnnazar6516]

Might be a silly question, but does that mean there's no voltage in between the coiled wires.

[@whyyoulooking4944]

The movement of magnetic field lined induces an emf across the coil Emf means voltage

[@mango-pb2fq]

thanks alot for this explanation good sir.

[@finlaycoburn2120]

Love it! Very helpful thank you soooooo much!!!!!

[@finlaycoburn2120]

Yay

[@PAREENMEHTA-i6x]

The best video I found due to which I scored 90 in my class test😊❤

[@muhammadzain4211]

HEY Cognito, I cannot Find the Right Hand rule on your channel please help me

[@AzzzZZ01]

samee pls lmk if u found it😭

[@SuhailKhan-ts9yo]

this is sahel khan before the test, if you wish my luck, +10000 good deeds

[@mahdirahman2006]

It helped a lot. Tnx a lot

[@yvesluyens5427]

Hi, great video, however I have a doubt on the + - signs in the video, Using the right hand the direction of the current should point to the + side (we are in the source, so current goes from minus to plus) 😅😀

[@Amer-pp3ty]

this video is soooo helpful, thank you so much!

[@Cognitoedu]

You're so welcome Amer! 👍

[@mohammadsheryar6201]

Can you please make a video on alternator and dynamo

[@rayenahmed5456]

oustanding explanation, thank you

[@Cognitoedu]

Glad it was helpful!

[@Garfield_633]

Hi cognito, can you make a video about left hand rules and right hand rules? There are so many rules and I’m confused, thank you!

[@TejDhr]

Amazing explanation

[@kjgamingfun4208]

i love these videos i wish you were my teacher

[@elisasee7538]

how do u know which way the current goes

[@simrankc6940]

use the right hand grip rule. finger points toward the north and fingers point in the direction of current slow.

[@puddleduck1405]

@@simrankc6940 thats the left hand rule

[@puddleduck1405]

use Fleming's left hand rule. Thumb is direction of force/wires, first is magnetic field direction (always from north to south) and second is the direction of current

[@slopherones7938]

bro made me understand the generator effect in 5 minutes...

[@KK-sl5uz]

Can I please ask why the potential difference swap each time we move through the magnetic field? and how do it induces a potential difference when a wire cuts through it? Thank you so much!

[@streetwearstash5104]

Great video!

[@hayaahmed5198]

omg you saved my life tysm

[@el_tio_Harry]

Hi, In the video is the Postive and Negative conventional current or actual electron flow?

[@ninetnatanakrit9032]

Why does moving the wire upward and downloaded provides emf? And why does it swap every time it passes through the field?

[@moshi5613]

The wire cuts through the magnetic field lines and this is what induces a potential difference in the wire. That's why if the wire is not moving/the magnetic field is not changing, there is no induced p.d since it is not experiencing a change in the magnetic field. The seconf part is a little bit harder for me to explain since i'm not familliar with the concept but I believe that the direction of the emf opposes the polarity of the original magnetic field, depending on the direction the wire is moved in. Hopefully that helps a little bit.

[@orangecaprinun]

THANK YOU!

[@kaltumaomar2823]

How do you know the direction the current will be flowing in?

[@sheikhheisen]

by using Fleming's Right Hand rule

[@simrankc6940]

@@sheikhheisen if ur using the first one, use right hand Fleming rule. if your usinga solenoid like the second type of induced emf, use the right hand grip rule :)

[@puddleduck1405]

@@sheikhheisen isn't it Fleming's left hand rule

[@zaidhashmi3357]

@@puddleduck1405 flemings left hand rule applies to the motor effect, this is the generator effect and uses the right hand rule

[@carolynemuthoni4464]

hey am from kenya and i have use your 5 min lesson and ther are so easy to understand thank alot

[@ksyloml]

cognito the goat fr

[@melimelon6080]

thx ily

[@Hashimida]

Cognito marry me bro saved my life far too many times for me to not fall for you 😭🙏🙏

[@unabr09]

Can I explain in exams with "voltage" and not potential difference?

[@andies9994]

may i ask why will the potential differences change when we move the magnet/coil ? thank you

[@ChandanDas-gl7ij]

no u may not

[@ZainAli-xy8kd]

nice video dear

[@H1289-h8o]

What do u mean by induced?

[@ManLikeChoby]

caused

[@nathanhall2804]

KSCS

[@bushra.a665]

@Sorab Karim koolaid sings cool songs

[@zaminabbas5288]

Thnx👌

[@chenyongyan6664]

I'm sorry, but what is direction of potential difference

[@Hashimida]

Same as current

[@ahmadtheaviationlover1937]

This topic always gets me confused

[@nethminadithya6678]

Why an e.m.f is induced ?

[@iluvxiaolongbao]

I hate physics smsmsmsm!!!!

[@andimjenny]

real

[@HeheHom]

Anybody revising?

[@ssgaming3238]

I am

[@alishaanimations3058]

Change in magetic fiekd - pd Doesnt move? (Mf or wire) Mangetic field doesnt change therefore no pd P.d changes as we change direciton Flow of electrons - Current Tehrefore conect it in curcuit makes current

[@abigailguessis1218]

So it’s a light switch

[@Anjalina5828]

I’m in year 7 0:09

[@rwlsh]

I still don't get it

[@AshutoshSingh-dn9je]

arenu sure magnetic field dont make loops full video is great except that

[@HeheHom]

All the videos are similar. Wire. Magnets.

[@NasirRaza-ks9yi]

Ya Ali AS

[@mxruko4582]

🤫

[@kotorosuki8325]

,❤️

[@Tils17]

who let bro cook???

[@DTDevy]

I hate magnets

[@suhelgerman9775]

Why am i forced to watch this

[@AzzzZZ01]

who forced youu🥲