Free energy mathematical proof using established scientific laws
(engineering.stackexchange.com)
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Yep. And after reaching that speed this DC motor will consume 0A and have 0N force. :) Ideal one, without any friction. Power will be consumed only to accelerate 0.454 kg to that speed.
Sly universe. :)
Without back EMF DC motors would have been prone to explosions trying to reach infinite speed. :) Including flat linear one, like in article. Motor is not just motor it is always a generator. (and vice versa) At this maximum speed ideal DC motor have zero torque/force and consume zero current, because back EMF voltage is equal to supply voltage. Real one will consume some power to fight friction.
I mean I'm building one no matter what, it'll be neet to see which one of us is right
I kinda disagree about the statement about regular DC motors though. No matter what they are doing pole switching, which means having to fight Inductive reluctance and deal with reactive circuit effects. Just from that alone, I don't think a regular motor could "overspeed" like that because the reluctance on the rotor or stators would be too high.
You'd get to a point where you can't even meaningfully switch the poles any more.
Have fun. If you have large enough magnet, then you could make simplified circular version from toy rail tracks with voltage applied across different tracks and use single car axle with wheels as a rotor. Axle should be conductive, of course, to connect wheels and complete circuit. I think it will be more convinient to have endless pathway for rotor for experiments. Voltage, of course, should be much lower. It will be interesting how multiple axles will behave on a circular track. Theoretically, they should not only run around, but also repel each other due to magnetic field generated by current through them. Some kind of Searl engine model.
Then, I could recommend to build a small railgun. Nearly same principle, just magnetic field created by current passing through rails, and if you will not be greedy on capacitors, you will be able to shoot wonderful plasma charges using balls rolled from aluminium foil as projectiles.
Found a video for you, shows how well these things can move, even with a simple design. https://www.youtube.com/watch?v=0rRjUJsjCXc
Nice design, but needs mercury, which is heavily safety-trolled out today.
Yeah, I saw "magneticgames" on youtube was doing something like that on youtube. Your suspicion is corect, when he has multiple ones going aroung on a circular track, they repel each other. (https://www.youtube.com/watch?v=oPzJr1jjHnQ) It's a fun toy, but it's not quite right my plan.
My issue with typical homopolar motors is that they are extreme low voltage, extreme high amperage. Most of them have ultra-small voltage drops when they run and while that's fun, they don't make good use of most power sources since amp-hours is also a bottleneck to consider when the source is chemical. So in that youtube channel, he kills his batteries in under a minute of play.
I'm thinking that I'll use a single toridal wound, air core, axially aligned coil as a stator. I'll then have my ring of magnets embedded in rotors on both side of the stator. All of both rotors magnets will point north to the stator since the wraps move towards the axle on one side and back around towards the rim on the other.
Then when I powered the toroid the rotors will spin. How fast, we'll see, but they will spin.
The calculation was done because I ordered 500 feet of 22 awg and I have neodynium magnets to use on my rotor. So I wondered what kind of force they'll experience. Obviously I won't get to make perfect use of the full 500 feet, I'll get maybe optimal use of like 240 feet of that wire, but still.
If I correctly understand your plan, rotors with magnets will not spin over stationary coil. It is named Faraday paradox. Lorentz force is applied to a moving charge only, not to the source of magnetic field.