How to make an Electromagnet | Super Strong

[@dmennenoh]

It's my understanding that the coils should run the same direction - by winding one direction and then backwards you are decreasing the strength. I've heard you make the first coil - then run a length straight back to the start - then make the second and subsequent layer of coils in the same direction... right?

[@albin8638]

not at all... - check any transformer lol... it works on the same basis u can go up and down, what you can NOT do is reverse the spin direction

[@angelsim1596]

Just a tip (and a theory) That electromagnet would be very strong but if you know anything about ohms law (I = V/R) you know that this has very low current because of the resistance. So a way to fix this is obviously add more voltage OR put it in the freezer and it'll create less resistance. Even better, put it in liquid nitrogen and it'll have far far less resistance and may be able to hold at least 5 - 7 pounds of force :)

[@LawrenceDuffy477]

You can also increase trans conductance by utilizing a transistor.

[@SwampFX]

Just Another Normie going on about what you said about putting a magnet in liquid nitrogen. You can create a stable hovering effect with two magnets. Lay a plate (or bowl as long as it contains the liquid) in between two disk magnets while they attract each other. Pour the liquid nitrogen into the plate and onto the magnet. I don't know what specifically going on but when you remove the plate the result is that the two magnets will attract and repeal each other to keep the space apart as they had with the plate. They will resist any attempt to move them closer or further away from each other. And they will stay this way until the frozen magnet thaws to the point the effect is no long able to resist the magnets urge to attract one another.

[@barrythebee2819]

nerd

[@markizrey2312]

Naturally Loved Music thanks! Will the magnet be able to hold power once it's temperature starts to return to normal?

[@shadowdyll5442]

Hey I know this was a while a go but how do u use liquid nitrogen or helium to create a strong electromagnet is it just extremely cold or something and how do u keep that electromagnet super strong

[@svcrafts]

Wow amazing 😊 2:40

[@dwaynewladyka577]

I'd use a plastic form to put the bolt into. That would protect the coil better. Great video..

[@ryan736]

Do you have to use one long wire or are you able to connect wire? Would you need to splice them, solder, or can you just wrap it over each other?

[@omkarahi]

You should not wind directly on the bolt because the threads are sharp and may damage the insulation. You can use some insulating material pipe or even paper.

[@Tnapvrvideo]

Great explanation and demo. Would this be a safe project using a 12V battery? What is the largest, preferable, gauge of copper wire for this type of project using a 12V battery? Lastly, what is the furthest distance between the threaded bolt with the copper wire winding and the object being attracted where the object will travel that span of space to attach to the bolt? Could I get a an object that had the equivalent weight of let's say 20 paper clips to jump 1/2" of distance using a 12V battery? MANY THANKS!!!

[@timmyandtinyoutdoorfun1649]

Thanks for the science fair project

[@rangiroa100]

Hi guruhacks9688. I have two questions. 1) If you take that same iron bolt with the same copper wire and with equal number of copper wire turn but the battery is 12 volt instead of 3.7 Volt, then would the electromagnet be stronger and if so then how much stronger? 2) When creating an electromagnet, what is the maximum voltage should be use to make the magnet stronger and at the same time utilizing less current (The magnet is more energy efficient) ? 3) If you use a Neodymium (rare earth) magnet and wrap a coil around it like you did and you use a 3.7 Volt lithium battery, then would the magnet be stronger or would it remain the same?

[@datakomgensetcontrollertec1306]

thanks for your effort can i use ac instead of dc current

[@almedobiasta5287]

Thanks for posting such a helpful video..

[@goodtech1]

You are welcome. Glad to help :)

[@JeffTheHokie]

Instead of a bolt, wrap a socket extension with the coil, and tape a 9- volt battery to it (so it can spin freely.) Then you have a magnetized socket wrench, and if it is strong enough you won't drop nuts and bolts.

[@marieblandine]

Hey, would using a THICK wire dimibish the strength of the field, if so how long would the wire have to be ?

[@softbread1728]

Do you think it something bad could happen if I put more than one source connected to to the same copper wire?

[@R2NOTU]

Does your wire have size like 26 awg or 30 awg ?

[@DebarghaBhadraGFX]

GOODTECH - Creativity and Science, can we use non insulated copper wire instead of enameled copper wire?

[@goodtech1]

A non insulated copper wire will get shorted and cannot be used. However, you can use an insulated copper wire to make a simple electromagnet.

[@DebarghaBhadraGFX]

Thank you

[@DebarghaBhadraGFX]

***** can you say please where i can get this enamelled copper wire?

[@goodtech1]

I got it from a local motor winding shop.

[@DebarghaBhadraGFX]

Thank you you helped me a lot

[@bramboraail]

Is this about sending voltage to a conductor without any resistance ? That will destroy the conductor and power source in a short time right ?

[@amritpalsingh517]

theoretically yes BUT in real life the battery will always have enough internal resistance to prevent that and also the wire will have resistance; the worst it's going to do is make them both hot.

[@mihajlopetkovic2003]

Also you must wind in the same direction or the currents will cancel each other out and you get weak electromagnet.

[@goodtech1]

Yes, that's true, but if you carefully notice that even in the overlapped loops, the direction of current remains the same.

[@mihajlopetkovic2003]

Yes, you're right.

[@Albert-fe8jx]

Can you use an old flashlight as the battery container and switch? If so, please show how you would do that. Thank you.

[@goodtech1]

Yes, that can be done but it will depend on the design & construction of the flashlight. If the flashlight can be disassembled then open the flashlight and identify the two wires that connect to the light source. Now, remove the light source and connect any other component to the two wires, you are now ready. The flashlight container is used as a battery holder with a switch.

[@sanketmathur3072]

Which type of wire will be best for the electromagnet if we are connecting 2 batteries(2*9V DC). Would it be able to stop a body having a momentum of 0.16 kg m/s that is a body of around 400g and with a velocity of 0.4m/s. Please reply

[@sanketmathur3072]

Better reply fast, I will come to know that in 4-5 days anyway. Since I am make a project which requires this, it would be better if you reply in time. Your reply will confirm my logic so please help.

[@goodtech1]

If you are connecting normal 9v batteries, you will not get much stronger magnetic force as 9v batteries do not have much power. A normal chinese battery can only provide 150mA of current i.e just 1.35 Watts (for single battery) , i have used a 3.7v Li-ion with 2200mAh current i.e about 8 watts. So the strength of magnet will depend on the power supplied. However, using 28 AWG - 30 AWG is best suited for a good electromagnet that can be made by hand at home. Now, an object of 400g moving with 0.4m/s velocity will just have about 0.03J of kinetic energy (1/2mv2), the magnet can easily be created to stop this object.

[@sanketmathur3072]

Sir, Thank you for your reply. I really appreciate that how you read my comment and came to reply by yourself.

[@goodtech1]

You are welcome Sanket. If you have any queries, feel free to comment.

[@p1nesap]

Good job. How many amps is that 18650 battery?

[@goodtech1]

Thanks...I am glad you like it..This is a 2000mAh 3.7v battery.

[@p1nesap]

Thanks, I have same battery, and wires started smoking when connected. Is it safe to touch 2000 mAh?

[@timeslidr9063]

@@p1nesap @ 3.7v yes

[@urielc.castillo5569]

how would you make ball bearings magnatized?

[@TheCerberusInferno]

Is that necessary to have silicon steel type to make electromagnet or any type of steel can work ?

[@wslyLegend]

what made the electromagnet stronger? I need the answer to my question for homework. Can you help me?

[@Staticin0]

by using the coiled wire many times

[@mahirbaksh8712]

Well....it looks neat enough. I will try it. Thanks bruh...

[@goodtech1]

Thanks mahir....I am glad you like it..I can assure you, if you make a similar one, it will work really great.

[@bungkus02]

Hi! When you remove the enameled insulation on the wires and connect the bare copper ends to the battery with your bare hands, will you get an electric shock? albeit even a minor one?

[@goodtech1]

No, the battery i used is only about 3.7v, which is very low to be detected by human body or to get an electric shock, however, high voltages can be very fatal.

[@bungkus02]

Thanks!

[@CuppaLiber-tea]

GOODTECH - Creativity and Science It's the amperage that kills you not the voltage...

[@jonunwin2780]

Don't listen to the above, it's not just the amps that kill you, volts do too. That's just ignorance and a lack of technical knowledge. Volts is just a unit you need to consider potential difference (PD) and electromotive force (EMF). The body has resistance and a resistive breakdown point. The higher the PD the less resistance the body has and therefore less amps required. Ohm's law in play here. The human body in good condition, dry and but broken can have a resistance of 100,000 ohm's. If wet or broken it can actually be far far less. As low as 500 ohm's but let's say it's 1000. At just 30v that gives 30ma which is a trip point for an RCD. So as you prolong and increase the potential difference your skin and tissue breakdown and as a result has less and less resistance. Generally it's safe to work with less than 30v but that's not a given. I treat anything over 12v as something that will guy me when I'm writing with electronics. Electricity is fascinating when you dig deeper such as electrons flow in the opposite direction to what you think and opposite to current. Hope this helps although it might raise more questions now than answers

[@Danieldetarb]

Bonjour. N'a t-il pas des problème de chauffe ?

[@kaiftamboli2599]

GOODTECH can I use normal cell and not lithium ion cell?

[@goodtech1]

Yes, a normal cell also works.

[@scottk7613]

Can I make this strong enough to pull something across the room? Would it mess up a tv or computer in the room if I make this strong enough to pull objects. I want to put something on a book, and pull it off a shelf with a magnet.

[@goodtech1]

No, this magnet can't be turned that strong. I am not sure if a magnet can be powerful enough to work across a room but yes, very powerful magnets can be made & they do exist but they are very bulky and heavy requiring high input power to work, which are only useful in industries. Also, the strong magnetic force does interfere with electronic devices and can easily damage them. However, to pull a book in the shelf does not require very high power, instead of electromagnet, just use simple neodymium magnets. A small magnet attached to the book and one to the book's location in the shelf, will be enough to hold the book in place.

[@Jay-vu7iz]

Can i use 20 volt drill battery

[@iMixUMatch]

Hello Sir i would like to ask weather conductor size and if its bare conductor make a difference?

[@ktmridersclud1293]

What wire u used to attache the cooper rolled to bolt

[@nisbafatima5141]

Instead of battery if we give dc to it will it be the strongest magnet

[@goodtech1]

I didn't understand your point. A battery is also a DC source, however, high power generates stronger magnetic force.

[@kevinsigue1207]

Hi. Is it ok to use wires like the usual wires we use in our homes? Like the wires we plug into the outlets? thanks!

[@goodtech1]

Yes, those insulated wires will also create magnetic field but since they require large space to wrap same amount of wire (because of thick insulation), it is generally preferable to use enameled copper wire, then you can wrap much more wire without increasing the size.

[@wonderousdogicle6781]

I had the choice to do this for a school project (other than the maglev train, I chose the maglev train) and when I saw what I needed and looked a the prices, I was like "Yeah no."

[@denzvenvadakkan5103]

Thanks

[@nemo_is_lain]

merp

[@mikeoxlong7607]

Will this still work if I cover the coil of wire of electrical tape?

[@gurbhajansingh2135]

If i remove insulation from the normal wire used in our homes then does it work properly

[@goodtech1]

No, it will not work as the wires will be short circuited.

[@JagtarSingh-xt6os]

To gain its magnetic power should i give it high voltage or use more copper wire.

[@goodtech1]

Magnetism is directly proportional to copper as well as current in the coil.

[@mygmailschd3909]

Higher voltage or more windings

[@JagtarSingh-xt6os]

I Will Prefer High Voltage

[@alfieshienmacalinggang5358]

i wonder if ths magnet can atract gold

[@kashif_farooqui]

Dear sir, Sir kya ham copper wire ko nikal kar kar sakte h ki nhi? Please reply me...

[@goodtech1]

Hello Kashif, kaha se nikalni h copper wire?? Enameled copper wire ko iron bolt pe wind krke electromagnet ban jati h. Normal insulated wire k bhi turns bna skte h but uski strength kam hti h cz for same thickness less wire will be wound over the iron bolt.

[@kashif_farooqui]

@@goodtech1 thank you

[@michaellovero7554]

I am using some wire from a Cat 5 ethernet cable, leaving the insulation on it. I wrapped it exactly as the instructions in this video recommend. I am trying to use this to hold styrofoam bombs with a thin sheet metal strip, in the bomb bay of an RC plane. I have an electronic switch, which will power the magnet until I flip the switch to kill the power. The plane flies on a 14.8V Lithium Polymer battery, but the switch will only provide the 6V that the Battery Eliminator Circuit in my Electronic Speed Control sends to my receiver. This is causing the wire and bolt to become extremely hot. Am I doing something wrong?

[@goodtech1]

The bolt and wire do get slightly hot after operating for a very long time but the extreme temperatures are due to high currents flowing through the wire. Increase the no. of turns or reduce the current in the power source. However, reducing the current will also tend to reduce the magnetic strength, so it is recommended to increase the no. of turns.

[@goodtech1]

I hope you are using only a single wire from the cat 5 cable and not using the entire ethernet cable to wrap around the bolt.

[@michaellovero7554]

Yes, one wire pulled out, not the entire cable

[@goodtech1]

Then it should work fine, you only need to increase the turns.

[@domnasion2219]

could this basic electromagnet be used to fry out electronics easily like a basic magnet?

[@AzaiKang]

How long does it takes the coil to overheat with 3-5 meters of winding? I was planning to make a Magnetic glove. I'm going to attach the magnet to a glove instead of making an object to hold it though, thanks! Subscribed!

[@amritpalsingh517]

have you thought about neodymium magnets? they are a lot smaller for similar strengths, which will make your glove more elegant...; also professional electro magnets are way more powerful than home made ones! Its not that difficult to make your gloves strong enough to hold your body weight using them.

[@lebergerdesphotons4565]

@@amritpalsingh517 Hello, are you still around? Where can I buy these "professional electro-magnets? I want to send very short and abrupt square waves through it at different frequencies. Is there an equation which will help me to know it advance what to expect when I change the frequency? Right now I only have a velleman oscilloscope/signal generator, limited to less than 500 ma. Do you know where to find or how to make a circuit that can generate variable frequency square waves and send more current than that without hurting itself? I'd like to send at least 1 ampere, so the device should be able to do more, just so it's not always stressed. Thanks for any recommendations you could make.

[@kriegddf9583]

I have a question. Can you do this in a way to make it like an elevator? If so, what do I have to add/change? Please respond quickly

[@refract8491]

Bad idea, your fucked if the power goes out.

[@jacobsanders4254]

*3 years later*

[@Torchl146]

isnt it kind of dangerous to just hook up a li ion cell with out controll directly to a copper inductor?

[@jaberalfaras1443]

very helpfull video

[@vittalashraf3359]

should we use insulated wire?please reply fast

[@goodtech1]

Yes, only insulated wire can be used to make an electromagnet.

[@shoaibhuzaif2002]

we can buy also

[@matthewmorrison2071]

Does the wire have to be insulated?

[@NeverSuspects]

yes, coated magnet wire or enamel coated wire is best as it allows for tighter winding

[@nagireddysatyanarayana6398]

Which copper can use

[@hatodesu5374]

If I would use a steel bar around 12 cm, would it be more stronger?

[@goodtech1]

Strength mostly depends on no. of turns of wire and current. However, you need a soft iron bar, it is much more magnetic than steel.

[@amritpalsingh517]

steel will be much more difficult to magnetize but it is also difficult to de-magnetize steel, so once it is magnetized enough, you can remove the wires and the battery and it will still be somewhat magnetized :)

[@robertlincecum9909]

is galvanized ok?

[@Cabal2600]

How to create N and S electromagnets such as negative and positive??

[@nandinichavan3203]

Par +ve aur -ve connect hote hai na tho spark aaye ga

[@ramaraoyeruva3062]

Can it sustain 60v

[@shatrughanvishwakarma4367]

How much long bolt you had used and how many guage wire

[@goodtech1]

I used a bolt of about 8" and a wire of 28 AWG. However, you can use any length of the bolt and any gauge wire as long as you can wound it tightly, it will work well. Make sure to use enameled wire.

[@shelala_e2687]

Hi may I ask what is the size of the wire?

[@mercuryman1444]

Why does it have to be around a nail? What else could it wrap around?

[@goodtech1]

It can be around any iron object. An iron nail or a bolt is most easily available.

[@mercuryman1444]

would a 15 volt electromagnet be effective?

[@goodtech1]

Yes, the magnetic field in electromagnet is directly proportional to power supplied. However, higher DC voltages are dangerous to handle. A 15v DC will surely produce an effective electromagnet.

[@killybing1]

Can I just connect the copper coil to a battery ?

[@goodtech1]

Which copper coil?? If the copper wire is enameled, then yes you can connect a battery to both its ends. But for an electromagnet to be powerful, you also need a iron core in the middle of the coil.

[@xCeleritas]

could you make a glove of some kind and possibly be able to move magnets with your fingers

[@goodtech1]

What do you exactly need to make even if you are able to move magnets with fingers?

[@jbstepchild]

Id be thinkin of how to utilize that glove for holding on or being super ridgid when needed but soft an flexable when current is off

[@dmchunter7772]

Wait is it really alright to use regular tape?

[@goodtech1]

Yes, why not?

[@Wyatt-vc3hc]

i was also wondering how to levitate a ball bearing

[@jungbechtospk40]

You should go to Inplix if you'd like to make it by yourselfs guys.

[@raisfathroosdian5120]

MY ELECTROMAGNET WORKS GOOD 👍👍

[@dontmessup8712]

Fantastic

[@goodtech1]

Thanks..

[@riyankhaliqi9859]

How do you reverse the magnet so it repels or can you

[@riyankhaliqi9859]

?

[@joshuablessed9367]

Good video!

[@goodtech1]

Thanks a lot :)

[@kgtc]

How to make it stronger: Pack some wires between each turn, use more copper, at least 20 metres. Connect to a 12V laptop power source. Enjoy Edit: Is it possible to make a powerful handheld magnet with a 4x 3.7v lithium cell holder

[@goodtech1]

Yes, it is possible but 4 batteries will be quite heavy for holding it in hand.

[@yuiix0026]

Where can I find these things

[@TheWorldWideGamers]

Just use a longer wire and stick the battery in a backpack then attach the magnet to a glove and you can kill any computer in the world

[@viswambharanpg9120]

0:00 hello friends CHAI pilo

[@dvrm13579]

What gauge of cu wire?

[@Venus-gc8mr]

satifying

[@tayyabejaz8081]

What will happen if there is a paper folded on bolt before wire

[@goodtech1]

A thin paper will not matter at all, however if a very thick paper is used, it will reduce the magnetic effect on the bolt.

[@dharmendersingh6120]

Very easy and very fantastic

[@goodtech1]

Thanks a lot..

[@michaelroberts1120]

In my experience, it is beat to use iron bolts not alloy steel. Alloy steel is the worst magnet material you can find.

[@uniquetechchip]

Plz make levitation anti gravity

[@ahmedismail8775]

can we rub the wire with plaas

[@goodtech1]

Yes you can, our aim is to remove enamled the insulation from the wire.

[@theguyttissybob2362]

can I us house copper wire to make a magnet

[@goodtech1]

Yes, it will also work but the magnetic strength might vary.

[@theguyttissybob2362]

GOODTECH - Creativity and Science OK ty for talking back

[@gursimransingh1388]

Hey bro i want to make levitating magnets project for my college can u help me in this matter please.?

[@goodtech1]

What kind of project you want to make?

[@gursimransingh1388]

I have to make a project in which one magnet floats over another magnet It may be simple magnet or electromagnet.

[@goodtech1]

Have a look at this video, it demonstrates a very simple magnetic levitation kzbin.info/www/bejne/hn-1Zph4e718aqc

[@carlrudd1858]

All together now..." I'm gonna wait till the midnight hour, till my love comes tumblin' down, I'm gonna wait till the midnight hour, when there's nobody else around.."

[@Tom-li9xq]

What is the length of the bolt

[@goodtech1]

The bolt i used is about 4.5" long, however, any size of bolt can be used to make an electromagnet.

[@Tom-li9xq]

GOODTECH - Creativity and Science Thanks

[@trysky360]

Nice video 👍

[@goodtech1]

Thanks..

[@tayyabejaz8081]

What will happen if i will provide 24volt of dc. Will it work or not.... tell me max voltage range....

[@goodtech1]

Yes, 24v is fine for an electromagnet. However, don't increase the voltage too much as it will be dangerous to handle.

[@harleyserafini51]

The higher voltage you use, the more wire you will need. Otherwise, the wire will heat up and short out the battery.

[@andricsajeev6767]

It looks like a solenoid

[@sawansharma6658]

what is the cost of wire

[@promishra6669]

Sawan Sharma it is not very costly about 50 rupees per meter

[@aselite413]

What is the price of copper wire

[@goodtech1]

It depends from place to place. I got about 250 gm of wire in Rs.250.

[@tayyabejaz8081]

And can i use wire from transformer

[@goodtech1]

Yes, you can. But make sure not to damage the wire.

[@ronakmathrani4945]

I tried to make the electromagnet, but I get shocked whenever I touch it. What do I do?

[@goodtech1]

How much voltage have you applied to the electromagnet. Small voltages can never give shock. Reduce the supply voltage and make sure to use enameled copper wire (no insulation damaged) over a long iron bolt.

[@ronakmathrani4945]

I am using a AA 1.5V battery

[@NeverSuspects]

add insulation, use a safe dc voltage source, dont power it with ac right from mains out the wall....

[@fardinshaikh6374]

But the battery will get heated

[@yoremkastor]

current?

[@orionburton3829]

If a connect to the AC port??

[@goodtech1]

Don't, its very dangerous and also not effective.

[@ishanaggarwal93]

Hey which swg size should I use for this? Thanks

[@goodtech1]

I used 28 AWG i.e 0.3mm enameled copper wire, however any gauge wire will work as long as it can be easily wrapped on a iron bolt.

[@ShopperPlug]

how many pounds can it lift?

[@aaronshaw6309]

Did any one see The Movie Sleight ? This is why im watching this cus im trying to be magneto or somebody LOL

[@jogeshkushwah9117]

sir is AC current used to produce electromagnet.

[@goodtech1]

Both AC and DC can be used, however, In a DC setup the magnetic field is constant. This is what you should use if you want something like a permanent magnet or in order to increase the strength of a permanent magnet.In an AC setup the magnetic field is continually changing. Therefore, in alternating current (AC) electromagnets, used in transformers, inductors, AC motors and generators, the magnetic field is constantly changing. This causes energy losses in their magnetic cores that are dissipated as heat in the core.Thus, with DC the magnetic field will be stronger.

[@sarasagar76]

GOODTECH - Creativity and Science sir.. i want to make permanent magnet.. so...how much thick ensulated copper wire should i use? and... can copper coil smoke or get hot..if i used this for permanent magnet? please reply sir..

[@PraveenKumar-fh1wr]

I tried to make an electromagnet but it got shot circuit . Why??

[@goodtech1]

What was the length of the wire you used?? The length of the wire should be sufficient and proportional to the power supplied, otherwise the battery will get short circuited.

[@denzvenvadakkan5103]

How much no. Of turns

[@goodtech1]

No need to count actual no. of turns unless you need a magnet of desired strength. However, I wrapped 6m of copper wire on a screw of 11cm in length. more the turns more will be the magnetic strength.

[@goodtech1]

No need to count actual no. of turns unless you need a magnet of desired strength. However, I wrapped 6m of copper wire on a screw of 11cm in length. more the turns more will be the magnetic strength.

[@amritpalsingh517]

the more the turns, the stronger it will get upto a certain point, after that the resistance will start to become too much and the current will become too little that the strength will start to decrease again. The maximum point depends on the material, thickness of wire etc and the internal resistance of the battery.

[@TheM7016]

Can you make this screw a powerful magnet for along time without the need for a battery connection? If you can .. how ?