Magnetic Fields, Flux Density & Motor Effect - GCSE & A-level Physics (full version)
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- เผยแพร่เมื่อ 10 ก.ค. 2024
- scienceshorts.net Please don't forget to leave a like if you found this helpful!
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00:00 Magnetic field lines
04:51 Magnetic flux & flux density (field strength)
07:00 Field around current in wire
08:17 Motor effect, F=BIL, Fleming's left hand rule
15:04 Experiment -
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For anyone who cant remember which finger represents what for the left hand rule, use FBI so first finger force second finger magnetic field B and last is current I
We got taught that too, our teacher just kept shouting "FREEZE, FBI" whilst doing the left hand rule as if it was a gun
can i safely assume that magnetic flux density is the same as magnetic field strength?
i learnt it via FMC - first finger F stands for Father, second finger M stands for Mother, third finger C stands for Child
Father Mother Child
if you can't remember the left or right hand, there's really no point in trying to memorize ....
@@encheng2664 Nice!
8:01- RH rule
8:40- motor effect
9:36- LH rule 😂
13:20- fred=bil (the force a wire feels when it is in a magnetic field)
14:01- using the LH rule
16:00- experiment: use electron balance to measure effect of length and current on force
Ps. Don’t delete this comment, I marked the times for easy reference so I can study fast 😄. Thanks for the video
I really want to express my heartfelt thanks to you as you've taught me what my teacher was trying to teach for 2 weeks, in just 20 minutes.
Dravidana? Tamilana?
How did a level go? 🤣
This is premium content.This channel is so underrated.
Spread the word 😉
I don’t have 6 fingers so does Flemings left hand rule still work for me?
you only use 5 fingers ,jezz infact there are only 3
@@ignatiusmudzviti5015 r/woooosh
Rip
Obviously a joke
@@realchestro2986 you don't say
I love you. I've been dreading this topic so much that even crash course physics couldn't help me. You've really helped me understand though. Thanks!
Same!
Science shorts, I am forever in your doubt .... the Cyclotron you explained in full details with the derivation of it , and the magnet on the balance and finding magnetic flux density and many more ... the exact same scenario Came to the AQA exam paper 2 ... I couldn't do them if it wasn't because of your help. I really hope something really good happen in your life because you have just made my hope of getting an A grade in ALEVEL physics to come alive again . Thanks a lot
+Nima the leagend Nimatheleagend That's great to hear! Glad it helped :)
you mean debt right? xD
I'm usually not the best at concentrating (adhd things), but your videos got me hooked up! I've been watching non-stop for 3 hours, so easy and clear, thank you for your work!
For the flemings left hand rule, u can use the following to remember what the fingers indicate:
Father: Force(thumb)
Mother: Magnetic field direction(index)
Child: Current(2nd finger)
Or
FBI
F=force
B= b field
I= current
Just discovered this channel really useful in-depth revision material thankyou
Clem Edwards trttftffr
fact
Uk and Ireland at 3:37 had me dead 😂😂
I've watched multiple other videos, but this one actually explained what is going on in detail
Would totally love to see one on Electromagnetic Induction, AC Generators and Transformers! This video was super helpful! Thanks :)
+Timo Next on my list after free charges!
thank you for your videos, currently teaching myself what i missed in class due to illness
an easy wat to remember what the fingers stand for with Flemings left hand rule is using F=BIL. starting with the thumb, which represents force, they are in the same order as the equation.
Well I'm glad that I found this the night before my exam!
Finally someone who can teach. I've watched an unbelievable number of videos on this subject. I knew it was basic simple but our education system produces simpletons instead of teachers. Thank you thank you thank you.
A tip to rember the 11:06 section
Which hand to use and for what
MotoR has one R so it's the LHR (left hand Rule)
GeneRatoR has two Rs so it's the RHR (Right hand Rule)
Hi, my teacher recently showed a nicer way to remember flemming left hand rule being that, your hand looks like a gun so you must be the FBI. Then just remember it in that order being F(Thumb) B(Index Finger) and I (middle finger). just a little easier way to remember. Great videos man keep them up, hopefully i can bag an A in physics because of you. Thanks man
What grade did you get in a level physics in the end?
I just got a “Physics Online” ad on a “Science Short” video 😂😂
They should do a revision battle....
Ooh, fancy! Some of us aren't flush enough to afford ads 😅
Science Shorts 😂😂😂 I don’t think you need ads, the video quality field strength is strong enough to attract the students.
(Can’t believe you actually replied 😭)
THIS WAS SOOO HELPFUL! 100% going to share with friends, extremely helpful and simple information. Thank you!
videos like this are gonna get me into uni. thank you!
You made it super easy to understand in a short time, thank you so much man!
such a helpful guide which actually related to OCR SPEC A (new spec)
You're a God send! You're videos have helped me so much! Thank you!!!
Thank you, really cleared things up!
These videos are way too good. forever grateful
This is awesome, I love your videos.
Do you think you could do a video with key word definitions for every topic? I feel like it'll help a lot of people cause key words are a pain and difficult to remember.
@scienceshorts yes please
I spent all my time revising the first year stuff, so I have been really panicking about the second year stuff. I still don't expect that good a mark, but these videos are fantastic, and have given me a chance lol. Thanks so much 👍
I'm with you, I've done the exact same thing 😰🤷♂️
Thanks a bunch! Super clear and easy to understand! Helped a lot!
Another way to remember the Left Hand Rule is by remembering it as
(Thumb) Father - Force
(Index finger) Mother - Magnetic Field
(Middle finger) Child - Current
Quick way to remember what hand rule to use. Right hand rule is generating so its basically gene-right-ing. IM very late to this video but wow is it helpful - A-levels in 2 weeks and looking over last years papers i need to do a lot more work.
Hope it went well
Shout out to his Fleming Left Hand 👏🏻
thank you so much for your work! A-Level Physics is super hard for me and my teacher's really difficult to deal with. Your videos help a lot Much appreciated :>
finally found the perfect explanation, helped a lot!
this is called the perfect lecture, made us study with 100% concentration, but even made us laugh during left hand rule:))))))
I like the drawing of the globe at 3:20. Got all the important bits
your perspective drawings are insane!!🥵
☺love that 3D hand drawing, very insightful lecture🔥👍
my physics teacher kinda sucks so i often find myself teaching the material to myself. needless to say this channel has greatly helped with that so thanks a lot
I remember the rule as my right-hand fingers (out-stretched) as the Magnetic Field B, my thumb as the Direction of Current, and my palm as the Force as if you'd slap something.
your channel is lit man
thanks for everything
Thank you! This was very helpful 😊
I learned so much from your video😁. Thanks man
THANK YOU, THIS HELPED ME ALOT. I have always been confused on this topic and I really needed to understand this as I am going for A*. Will be visiting this channel again for sure after my UCAS, hope I get into University of Manchester :D
Thank you so much!! I finally understand it! Thank you sir
I'm not even A level just puzzled by magnets u really helped simplify
THANK YOU SO MUCH! THIS IS REALLY HELPFUL
Ampère, was inspired by Hans Christian Ørsted, and came up with right-hand screw rule, coffee-mug rule or the corkscrew-rule. Orsted discovered deflecting compass in 1820, electromagnet discovered in 1825 by Sturgen, 1831 first dynamo by Faraday, 1832 DC motor by Sturgen, In 1823 Ampère's originally derived the rule, this was when he was studying effects of current directions between two conductors.
Thanks for the informative video - I was wondering if you've made any videos which refer to hall probes (part of magnetic fields/flux)
You are such a legend, thank you so much!
Fantastic review clips
Brilliant explanation. Thank you!!
Incredibly useful video, thank u Sir
Thank you for this awesome video! 😊
These videos are so helpful !
Thank u soooo much!! Please can u do a video on vector diagrams and calculating magnitude/direction for GCSE
Thank you so much😊Great explanation and memorizing methods are also easy👍
Thank you very much, this was really helpful!
This was super helpful but I just couldn’t stop laughing when I looked at the hand you drew for Flemings left hand rule
WHY DOES EVERYONE HATE MY HAAAAND :'(
Thank you for the nice explanation! But I think I prefer to think right hand rule for the direction of the force. We can keep our thumb as the direction of the current (as in the original right hand rule), then point with index finger towards the direction of the magnetic field, which leads your palm to face the direction of the force :D
+younedward 0_o
A good way to remember Earth's magnetism:
A compass that points North is pointing to the North Geographic Pole but since North is attracted to South, the North Pointer is actually pointing to the Magnetic South Pole
Really helpful thank you!! 😆
simple and good explanation
Bruh you are so good! Life saver!!!!
Helped me alot. Thankyou keep doing this grt work
for flemings rule my teacher told us to use "father, mother child". from the thumb to middle finger. father being force, mother being magnetic field, and child being current
wow good
Many many Thank you sir..
I have caught all the concept from this video..
Take love❤️🇧🇩
This is a great explanation, as always. I do want to ask you that what effect is exerted on a compass needle owing to its proximity to a current carrying wire? Please guide.
The video was great!! In detail as well ...
I had a doubt:
In the example, we need to think in a way that the wire will experience an upward force and instead the magnets will be pushed down as the wire is fixed. Why do we not consider the force to be moving downwards itself ?
Thank you.
The best physics channel.
+Dylan Vadher Cheers!
Hi Science shorts great vid as always, my question is at 16:45. why is the force acting on the wire upwards if you want a downwards force on the scale to get a reading? thanks :)
Newton's 3rd law I think
You're so underrated.
THANKSSSS it was very fun and educATIONAL a starrrr coming SOON
This is really helpful. Thanks you
This was really easy explained. 🙏
You’re a life saver
This is really good
thank you for the helpful content ! i truly appreciate your work
If you still need help with A Level Physics, you should check out Alt Academy, we have a TON of resources, including video lessons, revision guides, 24/7 academic support, handwritten past paper solutions with explanations on each step, and we even have our instructors sit live every night and solve a timed past paper, explaining why they're taking each step.
Thank you so much!!!
very educative. Thank you Regards
Sir, is it true that a constant e.m.f is being induced in an electric circuit simply due to the fact that there is a constant change in flux linkage( the magnetic fields of the electrons are interacting with the magnetic field of the coil of wire).
I'll be writing this in 8 hrs time, I'm now in a better position so thank you.
Great lecture
Jazakallah Khair
thanks a lot .. very helpful
For anyone who cant remember which finger represents what for the left hand rule, use Father, Mother Child, so first finger force second finger magnetic field B and last is current I
Thank u so muchhh! !!
UHAAAA THANKS SO MUCH SIR !
heres my thanks! muah~
I can safely assume that I can get an A in physics because of your videos! Thanks!
Thank you ❤️❤️
Shortcut to remember left hand and right hand rule
Thumb-index-middle fingers are Force(F), magnetic field (B) and current(I)
Which is simply FBI
Great excellent lecture
Please make more videos about particles physics such as particle interactions
Please upload videos in communication systems. Would be a great help to everyone.
why is my starting current increases in the circuit, if I used bigger stronger field magnets for DC motor (stator)? Have exam on Wednesday here...
S-sir, this is a brilliant and concise video and I truly appreciate it...
...However, that six-fingered "hand" at 9:36 IS GIVING ME A LAUGHING SEIZURE 💀💀💀
😤
Is there a finite amount of field lines around a magnet?
*_I LOVE YOU_*
Helpful
Excellent
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