Overpowered Electromagnet - I'm Scared This Time!
HTML-код
- Опубликовано: 5 сен 2024
- Taking my original electromagnet to a absurd levels. First electromagnet video: • Electromagnet from Mic...
This magnet is made from a microwave oven transformer (MOT). I destroy several lead-acid batteries pushing this magnet to the limits. I try several configurations of coils and batteries in series, and gather some crude relative measurements to demonstrate the difference between configurations. In the end, I nearly destroy my couch lifting some heavy weights. Like the video if you enjoyed it, and subscribe if you want to. I don't monetize my videos.
I don't advise you do the things I do. My videos are meant to look dangerous. I get professional advice and make painstaking efforts to manage risk. Be safe.
Music: Variation on Egmont by Kevin MacLeod
Song/License: incompetech.co...
Music: A2_xxHLL Feat. Poppy Ruth Silver by HS
Song/License: freemusicarchiv...
Other suggested videos:
High Amp Transformer: • Super High Amp Transfo...
Lithium Experiments: • Lithium Experiments
There is a device called switch. Be safe.
Thanks. Several people have said that, and I'm starting to realize maybe it's not intuitive from the video; I only touched the terminals when I was using 1 or 2 batteries. Any more than that, I used a "chicken stick" (in my case, a 3 foot long PVC pipe with a metal bolt on the end). Thanks for mentioning it and being a safety-conscious person. I don't want people to get the wrong idea and think "I guess it's safe to touch them because they're batteries" or something. It's not true, people! Putting batteries in series gets exponentially dangerous!
Well, 6 12V batteries in series do not pose a serious threat to a healthy person. You wouldn't probably be able to feel anything. DC voltage of magnitude this low has little effect, since human impedance is mostly capacitive.
Edit: touching the terminals is... well, I would be very careful to call something safe on the internet, but let's say I wouldn't worry about it myself. However, getting burned by the arc is another story.
Getting burned was my main concern. I've heard that the danger of shock can suddenly increase dramatically as you increase the voltage, because once you overcome the resistance of the outer skin it reaches much more conductive tissue and blood. And all your blood vessels lead to your heart. I'm just not going to test it on myself.
Better safe than sorry! Still, your biggest concern should definitely be getting burned by the hot battery clamps and possibly by the arc. I have once accidentally spot-welded 2 pieces of metal together while holding them about 1 cm from the weld. It was very painful to type the next week. :D
Watch as this guy formats every hard drive and mag stripe in a 10 mile radius.
EMP next project >)
Once you wipe your credit card, you call an 800 number to get it redone
Actually you'd be degaussing the harddrive or magnetic strip, not scrambling.
Lmao. So much for those windows 3.11 floppies on the top shelf you were saving as a collectors item.
I love the patterns on the CRT screen, definitely one of my favorite things to mess with when I'm playing with my magnets!
Should've put the coils in parallel, it would've reduced the resistance and increased the current.
3:44 - Excellent Demonstration!!! Using a scale to show valid magnetic flux strength.
Literally the best use for an Imac I've ever seen.
Excellent music choice. Not the least bit annoying, or tedious, or tolerable.
It's hypnotic, like water boarding.
What was this video about again?
Dear diary: Today, RUclips's complaints in the comments were legitimate and justified. I'm sick of that song!
This has so much potencial for inventions
Just now, you probably echoed the very thoughts of Michael Faraday when he first discovered electromagnetic induction.
How do you figure this tech has been around for a very long time its nothing new
I don't know his background, where he's from, or how old he is, but he had a valuable thought. It's a thought that humans have been thinking since they first broke a rock apart and found that the fragments were sharp. Maybe after this he went out and read a book about Michael Faraday. Maybe it changed his life.
No ..it doesnt
If you are trying to mitigate risk you should use a switch to make sure that you don't have giant arks of electricity being created.
Lane Ha so you say switches dont arc?
I wouldn't want to risk making a video with no arcing in it, though. ;)
What damage is an arc going to do? It's just pretty noise.
Chris B A possible fire or explosion or burning or possible serious injury or death or blindness or all of them and there are probably more that can be listed
There are only 12 - 24V DC that he uses (idk if more). Thats not enough Voltage for the current to go through his body.
hook the coils up to a pwm speed controller and wind the battery wires around the whole thing, maybe this helps
Yo man good work !!!!
you may find it can lift more - that steel plate you were attaching the magnet too looked pretty thin - it was probably saturating, meaning a thicker plate would allow you to lift more
Absolutely, I agree. This one was about 5mm thick.
Is it better to have more turns or thicker wire 🤔?
This vid is a bit old so there might be no response but you can reduce the electrical resistance of the coil by something like 90% iirc by supercooling it with liquid nitrogen.
Needless to say this would significantly improve the capabilities of your electromagnet
I thought about making a log splitter activator of course some lever action perhaps on the spring assist types
You should have the electromagnet strapped down on a bench so you can make a simple wood platform to put a scale on... or anything u have around...so you could put something on the scale and use string or something to tie to what ever you have on the scale ...and something metal on the other side so you could measure the force...or u could buy a force guage... I was just trying to think of a way to do it safely without spending money
Thats a pretty good scale, I have a chepo 1 from harbor freight and it goes all crazy with the reading if my cell phone is a few feet from it.
Lifting force can be 4...9 kgs/cm2 area of the ferrit core. In other words if you make a good closed magnetic circuit (1...1.5 Tesla in the core) than you have no chance to be "stronger" than the electromagnet. Key moment is the surface area of the ferrit core and how closed the magnetic cicuit it is. ;) This stuff can easily lift 100kgs ( 1000N) IMO wit less batteries as well. Safety first, so connections are very important (to not to disconnect accidently XD ) and I would use very very strong buck for testing this stuff.
Cool video, nice track selection
Seems to act as a magnifying glass to see the lines of electrons on the crt... like a magnifying glass to an lcd
Be careful my friend!
6:51 You’re lucky the back of your couch didn’t break
thereticly you could use this method to make a monster magnetic feild say around a camp sight
25v dc is not dangerous, unless you put the current through your tongue
If back emf didn't exist, but it does.
You see it better in the earlier video, a nice long and thick HV arc an inch away from his fingers when the power is cut, with one low voltage rated electrode in each hand.
That is due to the field collapse releasing stored energy and it will kill if you become the circuit.
Strong electric and mangnetic field can create disturbances in space-time
observably repeatable and reproducible or total Bull shit
look my magnet pulls my watch's iron spring DAMN IT MUST change space time
i can create disturbances in time space using my black(ass)hole to bull shit everyone
3:40 like , really , is that really happening if not fake , how is that
Very good question. The screen is a cathode ray tube (CRT) monitor. It works by sending a beam of electrons from an "electron gun" in the back of the screen, which then slams into phosphorescent chemicals in the front of the screen. Different chemicals light up with different colors, which is how you get the red, green, and blue components of each pixel. The electron beam is deflected using electromagnetic coils inside the screen: a horizontal coil and a vertical coil determine exactly where that electron beam hits the screen, so it can precisely hit each color component of each pixel. That's how it forms an image. When I introduce my homemade magnet, I'm causing that beam to be deflected away from it, and so it hits a place on the screen that it wasn't supposed to. That's why it distorts the image, but also why it makes the colors change.
hope you are wearing eye protection for those arc flashes.
lol hes not arc welding thats bright
If you have to many batteries in series, won't you just get the thin wite, or no be auae it's still DC, or are they in parallel
You had me interested with the piece of steel on the scale, it looked like the surface of the scale was also steel, with more surface areas the scale would move more easily, with that said, the steel blocked jumped. Here, i want to say, can you reverse your numbers/equations, to work with gravity to lift the steel?
sparks, bigass magnets and spreadsheets? oh man this is amazing! hehehe nice magnet !
Nice experiments. Perhaps using a lithion ion battery would help get more power on these magnets.
Poor batteries.. Buy still a very interesting project and easy to make. What aas the intensity through the magnet?
Would a mot be stronger if you cut above the primary keeping mot full size so more surface area or is it better to chop them short like some clips have done? Just wondered where strongest part is and if surface area make big difference why do they chop them half way down and seal in epoxy resin?
How is it possible feeding DC battery current to a transformer to achieve the conetion of magnetic circuit ?
shouldve put the electro magnet under the scale and measure the weihjt difference on and off , that should enable you to calculate the power per mass of material being atracted
Sure. If you think about it, what I did was exactly the same. Assuming the magnet is the same distance from the object, as long as I zero out the scale, I can pull up or down and that still tells me how much it's pulling. Pulling from above is only better because it pulls less on the scale itself (which would alter the result), and is less likely to ruin the scale.
the high intensity pops and cracks in music to damage ears and earphones?
I suspect you are losing quit a few volts in the wiring. Especially in that white wire croc clip jumper.
Hey, me and my son or working on building a hoverboard. We could use help with magnetic core if your interested.
Get yourself a 12 volt dc relay and a toggle switch. Use a separate battery to power the relay so you can use increasing voltage on your load side. Try experimenting with parallel and series-parallel battery arrangements.
On another note, always use the negative terminal if you're going to hot close a circuit like that.
Relay will fry or explode from the back emf.
Hey man, awesome video! Me and my friend are also working on an electromagnet for our high school exam project and currently have 1 secondary coil attached to a 24 volts 60 amp hour battery, may I know what you were using for the 209 lbs lift? That would help us out a lot!
Thanks!
I used only a single secondary coil and two 12V 7.2Ah batteries in series, so it should have been about 24V. They are both a Panasonic LC-R127R2P1. They also have an internal resistance of 0.04 ohms, in series I believe that's 0.08 ohms at 24V, so it should be capable of delivering about 300A. Also consider that the thing you're lifting should be a fairly thick piece of metal. The more magnetic "stuff" there is the more the magnet has to grab onto. If you're having trouble, you might have already ruined the battery. I wrecked mine pretty quickly. Don't quote me on all this stuff though, I'm not a professional. The best thing you can do is look up the datasheet for your battery and decide if it's suitable for this kind of abuse.
Those 12v 7.2Ah batteries are Not suitable for that type of use, you are overloading them, im surprised that you have wrecked batteries in the past and not yourself!
Yes, these batteries are not suitable for this. I hope everyone understands, as I stated in the video, the batteries will eventually fail. As for hurting myself: part of risk management is knowing that probability is the coefficient of risk. I do these things a few times, make a video, and I'm done. I've never been zapped accidentally, but if I worked with high voltage every day the story might be different. Every electrician has has a story about how they (or a buddy) got zapped.
Also look at the datasheet for the SLA(Sealed Lead Acid Battery) as it is dangerous to exceed the maximum current, these things can explode under too much current and you dont want acid in your face.
WhyShouldIEvenListenToYou Wie kom ik hier opeens tegen
Excessive? Its only excessive if something goes wrong. Till then, its excellent.
Hello. I used 12 volts and 12.5 currents. It got too hot after 20 minutes of operation. If I lower the current value, would I use it longer? Will I experience a decrease in my usage power? How much current should I use at most?
Why in series?, in parallel you would be getting double the current, therefore doubling your magnetic flux (Ampere-turns). I like the idea of using a MOT for a magnet ).
I wonder how much field you would need to cause water to move, since water is a diamagnetic it should resist both N & S poles if the field is strong enough, could you test it please? x.
why didnt he just flip over the scale and using that to measure its strength
this is hilarious holy heck
The frequency used for Qi chargers is located between about 110 and 205 kHz. Can you feed it lots of power at that frequency and charge all devices in all the rooms of your house in one go?
Qi isn't real.
Try adding a h bridge to limit current,
Can i use 220v transformer into 12 v battery?
strong fellow
How many transformer capacity kva??
DC v and A?
Totally amazing.. Could I use a ballast from an HID light fixture like a 1000watt HPS fixture ? Are you applying 12v to the 120v primary winding ? Would it be safe to use a car battery ?
You could probably use a ballast. If the coil is not sufficient, you could remove it and wind your own coil. The iron core is the part that's difficult to make yourself. Yes, that was 12V per battery to the 120V primary.
Jack F
be careful with sparks around a car battery. I had one explode. because of a battery charger arc while charging. I got plastic in my hand. and covered in acid? along with everything else. if you used a car battery. add wire and make the connections away from the top of the battery. its bad enough getting acid all over. but the acid and water mix has lead in it! I even got it in my mouth . don't guess I swallowed any. but it could be bad!
Get a few super capacitors if you can afford a few. They will dump their current quicker and will never kill themselves.
3:05 where the idea for candycrush came from.
why are you charging your 12v batteries to 12.5v? 14.4v is a full charge on a 12v battery
According to Panasonic's data sheet, the nominal voltage is 12V, and the discharge characteristic shows that it can discharge a tad above 12V. If you look at "charge method" for cycle use, the control voltage is 14.5V to 14.9V. That's not what the battery discharges, that has to do with a battery charger (www.mouser.com/ds/2/315/Panasonic_LC-R127R2P-1197056.pdf). But the real-world answer is simpler than that: I just charged them until they stopped charging. :P
Yo man how do i now if ther is magnetischeveld arou d me
sooo a magnetic field can induct lsd to old computer monitors? ;)
rofl
Poor vintage mac
i though it was finally useful
what you do to the imac... omg -.-
Man is that violent! lol
Why am I so cooled out by this
what's the strength in tesla
That's a good question! All my batteries are ruined now, so I can't find out.
What model, the S?
i really donʼt get what is negative weight ! if the steel is lifted by the magnet, the weight should decrease till it gets to 0 !!!
When you put a weight on a scale and hit the "tare" button, you set zero to whatever the weight is. So if I put a 115g weight on it and tare it, it will read 0. Then if I remove the weight it will read -115g with nothing on scale.
Negative weight is real, sir. You just have to believe.
2:12 what the heck? It looks like giant spark, but it is just 70V. (the one from possitive terminal of battery)
There's a lot of current too, so it's a very hot spark.
Put a diode in antiparallel with the coil!!
Large inductance of the electromagnet coil maybe?
DC can give some pretty serious arcs. Look up roobert33 ac versus dc, he breaks AC and DC loads with a knife switch and the difference is incredible.
Yes, its the same as the ignition coils in an old car, the sudden breaking of the current flow causes a massive spike in voltage and you get huge arcs!
What if you used an actual magnet for the core?
It might be less efficient. Some parts of the permanent magnet might be acting against the electromagnet, and the core of these transformers are a silicon steel alloy that is already optimized for magnetic permeability, and they are made up of thin laminated sheets to avoid eddy currents. I would guess, at best, you might see no difference. But it would be cool to try it and find out that I'm wrong. :)
How long can it be on before it starts heating up at 12V?
What will happen if you connect all the batteries in parallel
When I tried it with two batteries, it was weaker in parallel than in series.
What do you view as an acceptable lvl of risk mitigation?
I do the textbook procedure for risk management: make a list of risks, list the threats and vulnerabilities, score them on a scale of high/medium/low for probability and impact. You then judge an acceptable level for each risk, and apply mitigation techniques until you've reduced the risk to that level. The highest risks that I looked at were burns, pinched fingers, broken toes (from dropping something), and annoying my neighbors. The acceptable levels on those (probability/impact) were medium/low, low/low, low/low, and medium/medium.
How much currents flowing with 2 coils in series abd 5 batts?
Nice
I think it said 188.89?
Great way to ruin a computer monitor and crush your buddies hand though.
can someone explain how can it become magnetic with alternating current ,like the AC Contactor ?...if it dc,yes it can become magnetic because of static magnetic field..
On each half cycle, as the voltage changes the magnetic field will build, then as the voltage drops back to zero the magnetic field will collapse very briefly. Overall, the magnet is weaker because it's kind of switching on and off constantly. It's like it has a duty cycle less than 1.
so with AC it can be magnetic but at certain point the magnetic will become zero because of the alternating current...if we look at AC waveform, there is positive and negative cycle in the form..when in negative cycle of AC waveform does it become magnetic? or it just become magnetic on positive cycle of AC waveform?
@@AbuBakar-px5oz It is magnetized on both the positive and negative parts of the cycle.
So how much did it help with the weights?
Holy fuck this is sick 😱😱😱
Is there any way to turn this into a solenoid?
U removed the primary on that transformer?
Imagine a bigger battery 😳
what is the song name?
Directly after thinking of good practical uses for this, my mind turns to "what practical jokes can I create with this?" Any ideas would be appreciated by me, not necessarily by the victims.
Do I have to cut the steel in half or could I just cut it out with snips
I'm not sure what you mean. You're talking about getting the coils out of the transformer to begin with? You'll find it easier to cut it open. You can use a hack saw or an angle grinder along on of the welds, then pry it open and bend it back and forth until the other weld breaks. Now you can hammer the coils out. Also if you want to make an electromagnet out of it, it needs to be cut open so that the core is this "E" shaped piece of steel.
TheBeard Yeah I was thinking it would be much easier just to cut through the soft metal of the coil you don’t need instead of the steel. I’m never happy about cutting steel.
Pretty epic. :P
Pwm it :D and Do it With 2 Magnets. I did little drawings. Magnetform is c shaped, most Power is in between Or in the Open end i Think
what did he cut in half to make the magnet
microwave transformer.
rip sofa
Seriously. But that's nothing compared to my fat ass sitting on it every day. :)
@@TheBeardScience lol😂😂😂
Do not come close with your watch ....
Should try vw bug in drive way lol
Wouldn't it be easier to invert the magnet and push against a scale?
MultiDavid997 Don't know. :D
But I may have confused something here. Shit happens.
One could place a ferrous plate on the other side of the scale, thus pulling the plate, and the scale, towards the magnet.
Hurrr durr
Does it get hot?
You can afford all that hardware and cant buy a switch?
he should make himself a solenoid so he can still not use a switch but to use a switch
how many amps does it draw on 2 coils?
Ahhhh yes kill the apple computer KILLLLL itttt. good ridence
How can u get a lot of lead acid batteries? Lol
If you want ones like he was using in the video, they are commonly found in uninterrupted power supplies.
So, ya cant move the couch a few feet from the wall ??
Naaahh. :) If I decided to continue, maybe I would have. I stopped mostly because it was eventually going to cave in the center of my couch. I'm okay with doing a little damage here and there. My couch was $70 and I can patch a wall. It's more fun when you only kinda care. :)
Thats how you spark away your battery tabs
Yeah, they're pretty much toast. :)
Why not in parallel for more amps?
I tried that and it was weaker. You would think the magnetic field would be stronger because of Ampere's Law, right? I thought so too. It just doesn't work out that way in practice. The reason (I think) is because of resistance. Putting the batteries in parallel increases the amount of current they're capable of putting out, but you don't necessarily get that current. You need voltage to provide the push. In fact, because of Ohm's Law, increasing volts does increase the amps as long as resistance doesn't increase. There might be some ideal configuration of batteries in series and parallel, but I didn't try.
I think you should combine parallel and series. With more amps you can increase the voltage. Maybe you should measure the voltage now ans then you Know the Higher voltage to Go for.
I bet you're right. Too bad I destroyed all my batteries. :)
muy bueno
RIP epileptic people
Nice video! I made a video similar to this one, id suggest making a power supply for it so you don’t ruin your batteries.
Absolutely. But you gotta admit, there are few finer ways to get rid of some batteries, eh? :)
Like
There is a thing called a switch use it
There is a thing called back emf which will fry his switch.