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?
+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.
@@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.
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
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.
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
+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!
Hello sir, i wanted to let you know finding your channel was like finding a gem for me. I'm totally on my own as a private IAL candidate, I got no teachers or whatever, just the internet and books, so your contents are perfect for me to understand the concepts. Thank you so much, and please keep uploading sharing knowledges.
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.
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 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.
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
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.
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?
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?
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?
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?
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.
@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
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😊
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)
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 :(
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
