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
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
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!
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
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)
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)
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.
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.
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
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.
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.
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
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 :)
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
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 😭)
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 👍
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 💀💀💀
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
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.
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 :>
16:28 I don't understand why the wire should have an upwards force for there to be a scale reading, makes more sense for the wire to have a downwards force? Please can you help, thanks.
@@minecrafttiger6198 i think due to newtons third law of motion for every action there is an equal and opposite reaction if it pushes the wire up the reaction force pushes the magnet down
@12:46, is it cos? If θ = 0 (angle between current and field direction), then cosθ would be 1. Shouldn't it be F=BILsinθ? So when θ = 0, sinθ will be 0.
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
This was a really helpful video, I just have one question. Around 16:20 you said that the force exerted by the wire needs to be up in order for Newton's third law(that for every action (force) in nature there is an equal and opposite reaction) exert an opposite force on the scale. Wouldn't the wire exert a force on the clamps and not on the magnet? The wire would have to be fixed to the magnet for this to work right?
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.
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
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.
Why is it that the magnetic flux density is so high (in the example @ 18:21) when the numbers you plugged in seemed so benign? Can I create this flux density at home?
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
From GCSE, I remember the Left/Right hand rule fingers with "My Furry Cat". *Thumb:* My - Motion *First finger:* Furry - Field (magnetic) *Second finger:* Cat - Current
Quadrupole magnets, abbreviated as Q-magnets, consist of groups of four magnets laid out so that in the planar multipole expansion of the field, the dipole terms cancel and where the lowest significant terms in the field equations are quadrupole. Quadrupole magnets are useful as they create a magnetic field whose magnitude grows rapidly with the radial distance from its longitudinal axis. This is used in particle beam focusing.
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
4:15, I thought the magnets are the ones that are different, not the geographical poles. My teacher told me that north-facing magnet is actually the south pole of the magnet. Is this true? pls help
Remember, the wire is fixed and isn't in contact with the balance, just the magnets are. This means we need a force on the magnets. If the force on the wire was downward, there would be an equal and opposite force upward on the magnets, this is due to the interaction of the fields. Therefore to get a downward force on the magnets, we need an upward force on the wire.
I think its because the scale is measuring the mass not the weight. So its the same as someone standing on the scale and having it measure the mass, and we get the force by multiplying the mass measured by g. This force is then equal to BIL, where we can rearrange the equation
I assume it’s gravitational acceleration ; as a weight is also inclusive of being a force. Which is mass times the gravitational acceleration equals kg.
@@ScienceShorts How would Newton's 3rd law apply? what is the wire exerting a force against? Is it not travelling in the upward direction? I would understand if the force on the wire acted downwards on the scale and there was a reaction force upwards, but I'm not sure why in this case a force upwards would result in a force downwards.
@@ziotic279 the wire is stationary, you can assume they are being held by clamps on both ends, and since it's stationary, the upwards force is equal to downwards force.
depends on which angle is given. If the angle between wire and field lines is given, I think it's cos(theta) and if its angle between the magnet itself and the wire then it is sin(theta). Someone correct me if I'm wrong though
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
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!
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.
How did a level go? 🤣
@afatsquirrel1853 how did urs go (curious)
This is premium content.This channel is so underrated.
Spread the word 😉
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!
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
Just discovered this channel really useful in-depth revision material thankyou
Clem Edwards trttftffr
fact
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)
Imagine being in a gcse exam and pull out a left hand rule. Inspectors around you will think that youre pulling up some gang signs.
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
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.
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'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!
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.
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?
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
Hello, at 17:07 do the forces follow Newton’s third law. As you stated equal?
Uk and Ireland at 3:37 had me dead 😂😂
THIS WAS SOOO HELPFUL! 100% going to share with friends, extremely helpful and simple information. Thank you!
this is called the perfect lecture, made us study with 100% concentration, but even made us laugh during left hand rule:))))))
Well I'm glad that I found this the night before my exam!
I like the drawing of the globe at 3:20. Got all the important bits
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
thank you for your videos, currently teaching myself what i missed in class due to illness
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
finally found the perfect explanation, helped a lot!
videos like this are gonna get me into uni. 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
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
Shout out to his Fleming Left Hand 👏🏻
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 😭)
Why do you want the force to go upwards (away from the scale) and not just directly down into the scale?
You made it super easy to understand in a short time, thank you so much man!
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 😰🤷♂️
That was so great. Thumbs up !!
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 💀💀💀
😤
You're so underrated.
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
I'm not even A level just puzzled by magnets u really helped simplify
☺love that 3D hand drawing, very insightful lecture🔥👍
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.
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 :>
16:28 I don't understand why the wire should have an upwards force for there to be a scale reading, makes more sense for the wire to have a downwards force? Please can you help, thanks.
Because if the force on the wire is up, the force on the magnet is down.
@ but why?
@@minecrafttiger6198 i think due to newtons third law of motion for every action there is an equal and opposite reaction if it pushes the wire up the reaction force pushes the magnet down
These videos are way too good. forever grateful
Many many Thank you sir..
I have caught all the concept from this video..
Take love❤️🇧🇩
@12:46, is it cos? If θ = 0 (angle between current and field direction), then cosθ would be 1. Shouldn't it be F=BILsinθ? So when θ = 0, sinθ will be 0.
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
This was a really helpful video, I just have one question. Around 16:20 you said that the force exerted by the wire needs to be up in order for Newton's third law(that for every action (force) in nature there is an equal and opposite reaction) exert an opposite force on the scale. Wouldn't the wire exert a force on the clamps and not on the magnet? The wire would have to be fixed to the magnet for this to work right?
i have the same question
such a helpful guide which actually related to OCR SPEC A (new spec)
I'll be writing this in 8 hrs time, I'm now in a better position so thank you.
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.
15:04 Excuse me, Is this a series circuit in this experiment?
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
Thanks a bunch! Super clear and easy to understand! Helped 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.
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 :'(
Why is it that the magnetic flux density is so high (in the example @ 18:21) when the numbers you plugged in seemed so benign? Can I create this flux density at home?
You're a God send! You're videos have helped me so much! Thank you!!!
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
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
Thank you so much😊Great explanation and memorizing methods are also easy👍
This was really easy explained. 🙏
From GCSE, I remember the Left/Right hand rule fingers with "My Furry Cat".
*Thumb:* My - Motion
*First finger:* Furry - Field (magnetic)
*Second finger:* Cat - Current
Easier way to remember left hand rule is (from thumb first finger then second) FBI -> force (F), Flux density (B) , Current (i)
thank you for the helpful content ! i truly appreciate your work
Thank you, really cleared things up!
16:38 wait why do we want the force to go up?
Helped me alot. Thankyou keep doing this grt work
THANKSSSS it was very fun and educATIONAL a starrrr coming SOON
day before exam revision whooosh
your perspective drawings are insane!!🥵
Brilliant explanation. Thank you!!
Quadrupole magnets, abbreviated as Q-magnets, consist of groups of four magnets laid out so that in the planar multipole expansion of the field, the dipole terms cancel and where the lowest significant terms in the field equations are quadrupole. Quadrupole magnets are useful as they create a magnetic field whose magnitude grows rapidly with the radial distance from its longitudinal axis. This is used in particle beam focusing.
At 18:10 mins....how did we get the 9.8 in the equation? What does it represent? Thanks
9.8 is gravitational field strength of the Earth. So multiplying mass (shown by top pan balance ) by this gives us the force exerted onto the magnet 🧲
Is there a finite amount of field lines around a magnet?
THANK YOU SO MUCH! THIS IS REALLY HELPFUL
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
4:15, I thought the magnets are the ones that are different, not the geographical poles. My teacher told me that north-facing magnet is actually the south pole of the magnet. Is this true? pls help
This makes literally no sense.
17:00 how does a force up cause a force down is it newtons third law and where is that force down generated from
Remember, the wire is fixed and isn't in contact with the balance, just the magnets are. This means we need a force on the magnets. If the force on the wire was downward, there would be an equal and opposite force upward on the magnets, this is due to the interaction of the fields. Therefore to get a downward force on the magnets, we need an upward force on the wire.
Max Hedges sooooooo to sum it up.. IT IS Newton’s third law am I right?? 😵😵
You are such a legend, thank you so much!
Please upload videos in communication systems. Would be a great help to everyone.
Incredibly useful video, thank u Sir
Have my physics mid in 20 mins thanks for this 😂
Thank you for this awesome video! 😊
your channel is lit man
thanks for everything
These videos are so helpful !
18:17 where did 9.8 come from? Great video!! Just got lost there
dats g
I think its because the scale is measuring the mass not the weight. So its the same as someone standing on the scale and having it measure the mass, and we get the force by multiplying the mass measured by g. This force is then equal to BIL, where we can rearrange the equation
I assume it’s gravitational acceleration ; as a weight is also inclusive of being a force. Which is mass times the gravitational acceleration equals kg.
Bruh you are so good! Life saver!!!!
You’re a life saver
we need to make a petition for science shorts to get praised by the queen and gets that sword on the shoulder thingy
Lol, 'knighted' is the word you're looking for.
17:03 is this due to Newtons 3rd law: two objects that interact exert a force equal in size and opposite direction on eachother
Yep!
@@ScienceShorts How would Newton's 3rd law apply? what is the wire exerting a force against? Is it not travelling in the upward direction? I would understand if the force on the wire acted downwards on the scale and there was a reaction force upwards, but I'm not sure why in this case a force upwards would result in a force downwards.
@@ziotic279 the wire is stationary, you can assume they are being held by clamps on both ends, and since it's stationary, the upwards force is equal to downwards force.
Is it not F=BIL sin(theta) not cos when factoring in angles 12:42
depends on which angle is given. If the angle between wire and field lines is given, I think it's cos(theta) and if its angle between the magnet itself and the wire then it is sin(theta). Someone correct me if I'm wrong though
Yeah, I'm pretty sure it's BILsin(theta). says so in my book
Yeah as f=bil is max when the magnetic field and current are perpendicular.
Cos90=0, Sin90=1 therefore surely it must be sin theta
I learned so much from your video😁. Thanks man
very educative. Thank you Regards
Thank you! This was very helpful 😊
Thank u soooo much!! Please can u do a video on vector diagrams and calculating magnitude/direction for GCSE
In the experiment part
Why does the magnet move downward
This is really good