Charges in Magnetic Fields - A-level Physics

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00:00 Charged particles in magnetic field
08:30 Mass spectrometry
13:13 Cyclotron -
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Пікірлер: 105

  • @Cardifyz
    @Cardifyz7 жыл бұрын

    If the time period for one rotation is given by that equation at 17:55 surly you need to half that to find the time for 1 half rotation and then reciprocate it to find frequency. so F should be BQ/pi*m?

  • @ScienceShorts

    @ScienceShorts

    7 жыл бұрын

    +Cardifyz Nope, because the polarity of the dees has to flip twice in the time it takes for a proton to rotate once, which is what one time period is for AC.

  • @Cardifyz

    @Cardifyz

    7 жыл бұрын

    Thanks I understand now :D Your videos are great!

  • @javiermarazuela535

    @javiermarazuela535

    6 жыл бұрын

    Thanks, I had the same doubt. You really helped me out!

  • @mujeebrehman7810

    @mujeebrehman7810

    3 жыл бұрын

    @@ScienceShorts so you mean that time period is the time taken taken for the proton to travel through one dee?

  • @shyamkanjee6409

    @shyamkanjee6409

    3 жыл бұрын

    @@mujeebrehman7810 No, he means that one time period is the time taken for the proton to do one full rotation. In that rotation, the polarity flips twice which is when the AC current has done one time period itself.

  • @syedjafri9395
    @syedjafri93954 жыл бұрын

    People like you deserve a special place in heaven. Man be carrying us around in A2 physics.

  • @kyliek.9481
    @kyliek.94814 жыл бұрын

    1:15- direction of current 2:14- centripetal force on a charged particle 7:00- particle detectors 9:00- mass spectroscopy 13:20- cyclotrons

  • @swright4171

    @swright4171

    2 жыл бұрын

    thank you :)

  • @user-nk5qs8km3d

    @user-nk5qs8km3d

    Жыл бұрын

    luv

  • @gvh06
    @gvh06Ай бұрын

    Up at half 5 in the morning watching your stuff ahead of the exam today, you're a life saver

  • @Narc0YT
    @Narc0YT7 жыл бұрын

    I recommend this video to anyone like me who struggled to understand cyclotrons / mass spectrometers. They are very well explained and help with the understanding of the topic

  • @jaxsannathan1013

    @jaxsannathan1013

    7 жыл бұрын

    I want him as my physics teacher.

  • @ibrahimahmed3127
    @ibrahimahmed31277 жыл бұрын

    You absolute legend!!!!! I could never understand this before.

  • @scenzonhain3815
    @scenzonhain38152 жыл бұрын

    "Deez Nuts" haha gotchu at 13:49

  • @pictureparks5818

    @pictureparks5818

    2 жыл бұрын

    Was looking for this comment 😂

  • @naramroketa9687
    @naramroketa96872 ай бұрын

    You are very much up there with the greats such as Mr Trifon Madas (rip). My goat, thank you for being more useful than my teachers could ever aspire to be

  • @xsyxiyad1139
    @xsyxiyad11394 жыл бұрын

    i just dont understand why ppl dislike those type of vids .... like this guy is tryna save your ass here

  • @MasterFeiFongWong
    @MasterFeiFongWong3 жыл бұрын

    This may be off topic, but I think someone might find it interesting. :) Device to end the creation of Nuclear waist. Electric Generator Design that's powered by it's self & perpetuates more electrical current then is needed for it to run continuously on it's own. Step 1: calculate how much energy you need pumped into an electric motor to make a vertically positioned circular platter with magnets in-bedded horizontally around it's left side and right side (so there pushing force is pushing out sideways relative to the vertically spinning disc) to spin as fast as you need it to. Also better to make sure these magnets are shielded around their sides & back with metal that has high permeability so the magnetic field they are emitting is focused fully out sideways. :D Step 2: Calculate how many sets of copper coils you need to be interacting with magnetic fields to achieve this & to perpetuate more electrical current flow then is needed. :D Step 3: Build a round horizontally positioned platter covered in all these copper coils pointed down that does not move (Is stationary) :D Step 4: build a round platter covered in powerful magnets pointed up that can spin and place it directly under platter with hanging copper coils. :D Step 5: Position the vertical platter that is motorized close to the horizontally positioned platter covered in magnets pointing up so that when the vertically positioned platter spins the in-bedded horizontally positioned magnetic fields slam sideways against the edge of the horizontally positioned platter causing it to spin. :) Step 6: Make sure enough of the copper coils are feeding their electrical current into the electric motor and the rest of the copper coils are linked into a set of rechargeable Battery's placed in the closest most convenient spot. Step 7: Build a duplicate setup of horizontally positioned discs with hanging copper coils and disc with upwards facing magnets and assuming the first set of discs are positioned to the front left side of vertical spinning disc, position the other duplicate structures to the front right, the back left and the back right of the vertically positioned motorized disc. As the vertically positioned motorized disc spins the horizontally in-beaded magnets will now hit into all 4 horizontally positioned discs causing them to spin. so you will effectively be using the spin of one disc powered by one electric motor to spin 4 constructs that are each generating electrical current. now build this whole setup multiple times over and use the current perpetuated by it to power up scaled electromagnetic generators that are equal to or more powerful than the ones used in a nuclear power plant. You will now have a device that is self perpetuating off of it's own electrical current perpetuation and no nuclear waist to worry about.

  • @chrislavers7726
    @chrislavers77267 жыл бұрын

    Just found your channel, love it already!

  • @richard2088
    @richard20885 жыл бұрын

    Flipping off physics at its finest 1:51

  • @edforever6299
    @edforever62992 жыл бұрын

    best explanation of mass spectrometry and cyclotrons ive seen, thank you, defo think mass spectrometry will come up in aqa paper 2

  • @ibrahimabdullah8949
    @ibrahimabdullah89494 жыл бұрын

    God bless you sir!!!! beautifully and well explained!!!

  • @reubensmith917
    @reubensmith9177 жыл бұрын

    Amazing set of videos! Great for crammers like myself

  • @sabahhadhood603
    @sabahhadhood6035 жыл бұрын

    Thanks so much for your excellent lectures.

  • @covalent4897
    @covalent48972 ай бұрын

    thank you for this video. really saved me in my paper🤓🤓🤓

  • @f0arisntc730
    @f0arisntc7306 жыл бұрын

    +Science Shorts I think that the transformers and the capacitors video should be in the fields play list as well as it is in the same module, just a suggestion. Great Videos btw!

  • @michaelhazell7065
    @michaelhazell70655 жыл бұрын

    2:28 what's the paper ever done to deserve that?

  • @Mono_Autophobic

    @Mono_Autophobic

    4 жыл бұрын

    What

  • @youssefelsherbiny

    @youssefelsherbiny

    3 жыл бұрын

    @@Mono_Autophobic the middle finger

  • @HoshikawaHikari

    @HoshikawaHikari

    3 жыл бұрын

    Probably gave him a paper cut? XD

  • @yukicrosszeria101
    @yukicrosszeria1015 жыл бұрын

    can you please do a course on digital electronics, flip flops etc, you are a really great teacher

  • @andresg4606
    @andresg46065 жыл бұрын

    Hey thanks for the videos, they are really great

  • @troliverxx5351
    @troliverxx53512 жыл бұрын

    thank you you explained that perfectly

  • @brianfinnegan9700
    @brianfinnegan97005 жыл бұрын

    great video, thank u Sir

  • @mevinimunaweera9841
    @mevinimunaweera9841 Жыл бұрын

    Great explanation as always👍.This helped me a lot.😊

  • @milesaasher6979
    @milesaasher69796 жыл бұрын

    Thank you !!!! You are reeeeeeeeeeeally amazing!!!!!!!!!!

  • @matthewmeuleman3369
    @matthewmeuleman33694 жыл бұрын

    Really good video!

  • @muhammadahmed6038
    @muhammadahmed60384 жыл бұрын

    Amazing!!!

  • @carpanels8956
    @carpanels89562 жыл бұрын

    I remember the semi circles by 'dees nuts'

  • @hyportnex3973
    @hyportnex39735 жыл бұрын

    How do charges that the source emit randomly in time get synchronized in phase with the gap voltage? What happens to the ones that arrive at the gap but the voltage is of the wrong sign?

  • @aymenjahangir9784
    @aymenjahangir97846 жыл бұрын

    Your explanation on why a charged particle will spiral (the whole horizontal component of velocity not being affected by the magnetic field )was spot on.

  • @valarmorghulis209

    @valarmorghulis209

    5 жыл бұрын

    Aymen Jahangir valar morghulis

  • @NeboFilms
    @NeboFilms7 жыл бұрын

    Great video! - in the velocity selector you consider the force do to B and the force due to E, what about the force due to gravity? Is that so small we leave it out?

  • @ScienceShorts

    @ScienceShorts

    7 жыл бұрын

    +NeboFilms Correct, we do not take into account the force of gravity.

  • @taladiv3415
    @taladiv34153 жыл бұрын

    13:19, "not the name of a transformer" 😃 I terribly miss that magnificent series (1986 - 1990)!

  • @LazarusWilhelm
    @LazarusWilhelm5 жыл бұрын

    dees nuts

  • @saimxalam

    @saimxalam

    3 жыл бұрын

    i was looking for this comment

  • @ukimenustah7932

    @ukimenustah7932

    2 жыл бұрын

    annual chain reply laughing at dees nuts joke

  • @Mach3Max
    @Mach3Max4 ай бұрын

    (I am a complete idiot) + (I understood all your explanations) = (YOU 'RE GOOD) x (at explaining). Thank you !

  • @almanxyz7827
    @almanxyz78273 жыл бұрын

    very good video, i like thumbs 🥳

  • @Tintin-dm4ym
    @Tintin-dm4ym4 жыл бұрын

    You’re awesome

  • @PixelLabz
    @PixelLabz6 жыл бұрын

    Am I right about saying that the magnetic field lines go into the page for the cyclotron but only inside the dees? It's took me over half a year to understand these and your videos help so much, thank you :) *edit* Also why doesn't the magnetic field alter the speed of a proton in the cyclotron inside a dee when F=BQv which shows that B is proportional to v?

  • @girlonline3742
    @girlonline37426 ай бұрын

    4:14 is it spiralling inwards or is it spiralling in a perfect cylinder with no change in radius because I'm not sure if I'm getting it confused with part 7:29

  • @ScottE77
    @ScottE776 жыл бұрын

    I don't understand why the electron turns around at 3:47 it seems like it should just start to turn then go the other way, not spiral back again

  • @x_nova_x7469
    @x_nova_x74692 жыл бұрын

    8:11 would this not work though for pair production as pair production only produces a particle and its corresponding anti-particle therefore a proton or an anti-proton or an electron and a positron could be made not a positron and an electron from pair production?

  • @SullyOrchestration
    @SullyOrchestration6 жыл бұрын

    nice

  • @akshit1101
    @akshit11014 ай бұрын

    Hi! Where can i find an explanation for Hall Voltage?

  • @dulapiip
    @dulapiip5 жыл бұрын

    *_I LOVE YOU_*

  • @tarandhillon3651
    @tarandhillon36513 жыл бұрын

    For people doing OCR A we don't need to know about the CYCLOTRON as its only in the aqa spec right?

  • @Seby438
    @Seby4383 жыл бұрын

    If you were accelerating an electron in the cyclotron would it spiral the other way?

  • @Stevie-ld8ue
    @Stevie-ld8ue4 жыл бұрын

    Hi just wondering, 9:30, the direction of the magnetic field is going into the screen. By using flemings left hand rule wouldn't for force on the positively charged particle act upwards? Seeing as current is flowing from left to right?

  • @ScienceShorts

    @ScienceShorts

    4 жыл бұрын

    The field is coming out of the screen.

  • @Elitea20
    @Elitea204 жыл бұрын

    What is the definition of a feild?

  • @tonimcas
    @tonimcas7 жыл бұрын

    I will love you long time if you make one of Polarisation and EMF. You've basically been carrying me through my A-Level, thank you so much senpai

  • @ScienceShorts

    @ScienceShorts

    7 жыл бұрын

    Some polarisation already in the Waves vid, but will try to do emf soon, Anthony-kun.

  • @revisionaccount2104
    @revisionaccount21045 жыл бұрын

    I'm pretty sure the time period of the AC in the cyclotron should be halved, so therefore the overall frequency is doubled. Is that correct?

  • @ScienceShorts

    @ScienceShorts

    5 жыл бұрын

    No! Why does everyone think that?

  • @deadlyphoenix83

    @deadlyphoenix83

    5 жыл бұрын

    @@ScienceShorts surely that's the case since the particle travels around 1 dee (half a circle) before the voltage reverses?

  • @dickiefinehuman5269

    @dickiefinehuman5269

    5 жыл бұрын

    @@ScienceShorts because of a past paper i think 2017

  • @markdallen4018

    @markdallen4018

    5 жыл бұрын

    @@ScienceShorts They aren't listening to the part when you said it's the time period of a full transition from positive to negative and back again, rather than just one change.

  • @bainzy9627
    @bainzy96276 жыл бұрын

    Could the ion have a bigger radius due to it having a higher charge then an electron assuming it has more then one proton?

  • @ScienceShorts

    @ScienceShorts

    6 жыл бұрын

    It depends on how many electrons it's lost. I have seen questions that ask about doubly-charged ions.

  • @KarthikeyanDuraivel

    @KarthikeyanDuraivel

    6 жыл бұрын

    Also wont it have a higher radius due to it having a higher inertia of motion[momentum], as it would have a greater mass so it would be harder for it's direction to change.

  • @KarthikeyanDuraivel

    @KarthikeyanDuraivel

    6 жыл бұрын

    as even the relationship between radius mass is directly propotional

  • @Breazyy1
    @Breazyy14 жыл бұрын

    Cyclotron sounds like a name of a transformer lmao

  • @sparky844
    @sparky8446 жыл бұрын

    I haven't even started my A-Level Physics course yet just finished me GCSEs. I'm just watching these vids cuz Physics is so interesting... and I want a bit of a head start😊

  • @zohaibgulawan9070
    @zohaibgulawan9070 Жыл бұрын

    i think you should have include magnetic fields in cyclotrons a bit more like there is one magnetic field plate on top and one on bottom which makes the charge go in cirlce in the dees as there is no electric field.

  • @ScienceShorts

    @ScienceShorts

    Жыл бұрын

    🤨

  • @zohaibgulawan9070
    @zohaibgulawan90702 жыл бұрын

    Its not dee's its deez nuts....

  • @jackwong4099
    @jackwong40997 жыл бұрын

    Could you do physics turning points pls for AQA

  • @ScienceShorts

    @ScienceShorts

    7 жыл бұрын

    +jack wong Coming soon(ish). Will be done before study leave hopefully.

  • @ayddem07
    @ayddem072 жыл бұрын

    Bruv last video the guy side it's the right hand rule is it just a up down side ways rule or something

  • @mateiaprozianu3289
    @mateiaprozianu32896 ай бұрын

    glory to the teachers

  • @Cars.r.us2023
    @Cars.r.us20232 жыл бұрын

    just me that almost breaks my wrist in trying to work out f,b,i in flemmings left hand rule?

  • @karandhawatal
    @karandhawatal6 жыл бұрын

    What about the weight of the ion?

  • @krishnanpillay5048

    @krishnanpillay5048

    5 жыл бұрын

    The gravitational force here is negligible, so "mg" the weight would have no effect.

  • @muhammadjazibikramniazi5996
    @muhammadjazibikramniazi59965 жыл бұрын

    are cyclotrons still in a level syllabus?

  • @jonocour

    @jonocour

    5 жыл бұрын

    yes they are

  • @jonocour

    @jonocour

    3 жыл бұрын

    @fapping anonymously tbh mate I don’t have a clue anymore. I am at uni. Just try and type in your exam board so say AQA physics syllabus alevel and hope something comes up. Your teacher should really have told you this info

  • @saintoffootball7706
    @saintoffootball77062 жыл бұрын

    you dont have a video on hall effect

  • @RS-sy1ne
    @RS-sy1ne2 жыл бұрын

    Dees....Dees nuts:D

  • @michaelhunt2222
    @michaelhunt22226 жыл бұрын

    Can u make some videos on A-level astrophysics?

  • @ScienceShorts

    @ScienceShorts

    6 жыл бұрын

    Mayyyybe.

  • @jolyonstokes7176
    @jolyonstokes71766 жыл бұрын

    Shouldn't the frequency be twice the value you have just stated as it needs to change every half-period?

  • @ScienceShorts

    @ScienceShorts

    6 жыл бұрын

    Nope.

  • @jolyonstokes7176

    @jolyonstokes7176

    6 жыл бұрын

    Any further explanation?

  • @harrypickard3459

    @harrypickard3459

    6 жыл бұрын

    Because AC Is a sinusoidal wave, it changes direction every half wavelength, meaning that the frequency at which the direction of the current changes is double the frequency of the AC current. Therefore, the frequency of AC has to equal the frequency at which the particle completes its 360 degree rotation, not the frequency at which it passes through a Dee (which would be double, like you said)

  • @mjewx1448
    @mjewx14482 жыл бұрын

    hahaha dees nutz

  • @sankhagamage1928
    @sankhagamage19285 жыл бұрын

    Cyclotron Dees are like a Babybell

  • @rocklerock495
    @rocklerock4952 жыл бұрын

    You lost me where the free electron is actually moving the opposite way using the Fleming's left hand rule. Why does an electron move the opposite way if it's going the other way? I'm confused :(

  • @xenoclops756

    @xenoclops756

    2 жыл бұрын

    left hand rule is for conventional current and electrons travel in the opposite direction to conventional current, so when u wanna use left hand rule u have to take current (conventional) as the opposite of the electron's direction

  • @Rocks7
    @Rocks7 Жыл бұрын

    Dees nuts

  • @laitszki4980
    @laitszki49805 жыл бұрын

    u have missed synchrotron

  • @dineshkurimilla6217
    @dineshkurimilla62172 жыл бұрын

    oh fr, i didnt ask