Electromagnetic repulsion query

[Phys_newbie]

Hello,

I have been playing around, making my own electromagnets. As I am out of my depth, I am experimenting with 1.5 to 9 Volt battery packs.

I am hoping to have a setup where two electromagnets, around the size of a AA battery placed about an inch apart can noticibly repell each other a minimum of 3 inches.

After playing around with a 1.5V battery to a iron nail with approx 100 turns, I could only get a weak but noticible attraction force with no noticible repulsion force.

Anyway my questions:

-Is it possible to get a strong enough repulsion force from two electromagnet running 1.5 to 9V to significantly repell one another (i.e. 3 inches)?

-Can these 2 electromagnets run in series or parralell?

-For my understanding, does the electromagnet use up all the electricity passing through the wire? would it make a difference to the magnetic field generated if I placed a light along the circuit?

Any insight would be appreciated. And thanks in advance for your time.
Regards,
Daniel

 

[jehuty9800]

Hey, I am new here, but from my understanding of electromagnets, the polarity of the electromagnet depends on to winding of the wire in which direction it goes and which gauge it is. say you had very fine 30 gauge wire copper wire winding in a clockwise pattern the polarity would most likely be positive. but for this wire to have desired effects at the size of a AA battery there would have to be over 300 turns. the core has a great role too, an iron nail would not be a very sutable core, as it is blended with other metals and is not very pure, pure iron is hard to come by unless by special order, but has better conductive properties then a standard iron nail. when it comes to homemade electromagnets, materials are very important, copper wire works great, gold plated copper wire works betters, but for absolute performance, platinum wire is the BEST! costly but it has a higher current flow and has better cunductive properties then any other metal. but for value sakes, go for gold plated, it cheaper and more readily avalible. If you want a very strong magnet, neodynium magnets as a core can create great fields when subjected to electrical fields, but the overheat greatly. all in all, the main thing is MATERIALS, MATERIALS, MATERIALS.

 

[jim hardy]

the strength of the magnetic field is in proportion to the product of the amps X # of turns.

try ten times more turns
and do not put a lamp or anything to reduce current

if battery gets warm add more turns and check to see you didn't run battery down
experiment with short fat coils vs long skinny ones

 

[Nevertamed]

Hello,

I have been playing around, making my own electromagnets. As I am out of my depth, I am experimenting with 1.5 to 9 Volt battery packs.

I am hoping to have a setup where two electromagnets, around the size of a AA battery placed about an inch apart can noticibly repell each other a minimum of 3 inches.

After playing around with a 1.5V battery to a iron nail with approx 100 turns, I could only get a weak but noticible attraction force with no noticible repulsion force.

Anyway my questions:

-Is it possible to get a strong enough repulsion force from two electromagnet running 1.5 to 9V to significantly repell one another (i.e. 3 inches)?

-Can these 2 electromagnets run in series or parralell?

-For my understanding, does the electromagnet use up all the electricity passing through the wire? would it make a difference to the magnetic field generated if I placed a light along the circuit?

Any insight would be appreciated. And thanks in advance for your time.
Regards,
Daniel

-Is it possible to get a strong enough repulsion force from two electromagnet running 1.5 to 9V to significantly repell one another (i.e. 3 inches)?

A: yes it is posible, but due to u have a low voltage energy source you have to compensate it with a lot of turns in the coil to increase its efficiency, besides u have to choose the appropriate materials, good conductor for the coil and a good magnetic permeability material for the core, and try to make the coil area big enough too

-Can these 2 electromagnets run in series or parralell?

A: they can work in both configurations, but remember their 'capability' of producing a magnetic filed vary

-For my understanding, does the electromagnet use up all the electricity passing through the wire? would it make a difference to the magnetic field generated if I placed a light along the circuit?

A: if u put a light in series with an electromagnet both will drop a fraction of the total voltage, u can see the light as an additive resistance which will oppose to the flow of current in some rate, and thus the magnetic field generated by the EM will blosson i little bit less