Question about magnets and attraction

In summary: If you are interested in finding out more, I would recommend reading about magnetism in general and the various types of magnetism in particular.
  • #1
B4ssHunter
178
4
what would happen if a small magnet was exactly placed by the middle of another larger magnet in a direction parallel to it and at a considerable distance ? will it be pulled to the south pole or to the north pole ?
or will it be pulled down the middle such that the north pole of the smaller magnet is on the south part of the bigger magnet and vice versa ?
 
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  • #2
what's a considerable distance ??
state something that is meaningful

how about trying it yourself? buy a couple of bar magnets and experiment with them
in the manner you have said and report back your findings :smile:

Dave
 
  • #3
davenn said:
what's a considerable distance ??
state something that is meaningful

how about trying it yourself? buy a couple of bar magnets and experiment with them
in the manner you have said and report back your findings :smile:

Dave

i apologize if my post was not meaningful enough , also here its very hard to find any place that sells magnets * other than fridge magnets *
basically what i am trying to find out is whether attracted objects follow flux lines or not .
i know iron fillings or magnets get lined up by the flux lines of strong magnets .
but do attracted objects follow those flux lines ? or do they get attracted and move in a straight line ?
if they don't follow flux lines then what is the difference between objects aligning themselves to the magnet and objects being attracted by the magnet ?
 
  • #4
Objects don't follow flux lines in the same way as the electric field, because the magnetic force is perpendicular to these lines, whereas the electric force is tangent to these lines.

The magnetic force is felt by currents, and the force is perpendicular to the current direction AND the flux lines.

The alignment of magnetised iron filings parallel to the magnetic flux lines is due to a slightly more involved interaction, rather than a simple current, the iron filings are all tiny magnetic dipoles. Essentially a magnetic dipole is a tiny current loop, so the interaction is fundamentally the same, and it turns out that this current loop experiences a force which tends to make each individual filing align with the field.

Think of each one as a compass needle. There are no obvious currents in this needle, but it is still magnetised, which means the microscopic magnetic dipoles (i.e. current loops) are all pointing in the same direction.
 
  • #5
To really understand the physics, you need to study the definition of magnetisation, and its relation to the magnetic field. Ideally this would be learned after you learn Maxwell's microscopic equations, which means vector calculus.

Until then, all I can give are hand-wavey explanations based on current loops which I imagine are impossibly hard to conceptualise.
 

1. What is magnetism and how does it work?

Magnetism is a force that objects with magnetic properties exert on one another. It is caused by the movement of electrons within the atoms of the object. These electrons have a magnetic field that can either attract or repel other magnetic objects.

2. What is the difference between attraction and repulsion in magnets?

Attraction is when two magnets with opposite poles (North and South) are pulled towards each other, while repulsion is when two magnets with the same poles (North and North or South and South) push away from each other. This is due to the magnetic fields interacting with each other.

3. Can magnets attract non-metal objects?

Yes, magnets can attract some non-metal objects depending on their magnetic properties. For example, iron, nickel, and cobalt are attracted to magnets, while materials like wood, plastic, and glass are not.

4. How can I make a magnet weaker or stronger?

The strength of a magnet depends on the material and shape of the magnet. To make a magnet weaker, you can heat it up or drop it repeatedly to disrupt the alignment of its magnetic domains. To make it stronger, you can expose it to a strong magnetic field or add more magnetic material to its surface.

5. How are magnets used in everyday life?

Magnets have a wide range of everyday uses, such as in speakers, motors, door latches, credit cards, and magnetic toys. They are also used in medical equipment, such as MRI machines, and in industries like transportation and energy production.

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