Magnetic repulsion and attraction

In summary, magnets attract materials that have unpaired electrons that spin in the same direction, which creates a magnetic field that attracts other materials. The same quality that turns a material into a magnet also attracts it to other magnets. When two magnets have the same poles facing each other, their magnetic fields interact and create a repulsive force. This is due to the opposing direction of the electrons' spin in each magnet's field.
  • #1
Celluhh
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You may have noticed that the materials that make good magnets are the same as the materials magnets attract. This is because magnets attract materials that have unpaired electrons that spin in the same direction. In other words, the quality that turns a metal into a magnet also attracts the metal to magnets.

copied this from howstuffworks.com

Ok so by how I understand it from howstufffworks.com and yahoo answers, magnets attract materials that have unpaired electrons that spin in the same direction, so north pole of a magnet is attracted to south pole of another magnet because the south pole of the magnet has unpaired electrons that spin in the same direction and which faces the north pole of the first magnetso south pole is canceled out by the north pole? Ok this sounds totally wrong somehow...

Can someone please help and explain why magnets repel too in terms of atomic theory thank you!
 
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  • #2
Magnets repel each other when both of them have the same poles facing each other (north to north or south to south). This is because the poles of the magnets have the same type of magnetic field, and the two fields interact with each other, creating a repulsive force. This is due to the fact that the electrons in each magnet's magnetic field are spinning in the same direction and the two fields oppose each other.
 

What is magnetic repulsion and attraction?

Magnetic repulsion and attraction are two fundamental forces of nature that describe the interaction between magnetic objects. Repulsion occurs when two objects with like magnetic poles push away from each other, while attraction occurs when two objects with opposite magnetic poles are pulled towards each other.

What causes magnetic repulsion and attraction?

Magnetic repulsion and attraction are caused by the alignment of magnetic fields. Magnetic fields are created by moving electric charges, such as the flow of electrons in a wire or the spin of electrons in an atom. Objects with aligned magnetic fields will experience repulsion or attraction depending on the orientation of their poles.

How does distance affect magnetic repulsion and attraction?

The strength of magnetic repulsion and attraction decreases with distance. This is known as the inverse square law, which states that the force between two magnetic objects is directly proportional to the product of their magnetic strengths and inversely proportional to the square of the distance between them. This means that as the distance between two magnetic objects increases, the force between them decreases.

Can magnetic repulsion and attraction be turned on and off?

Yes, magnetic repulsion and attraction can be turned on and off by manipulating the magnetic fields of objects. This can be done by using electric currents to create temporary magnetic fields, or by using materials such as iron or steel that can be magnetized and demagnetized.

What are some real-life applications of magnetic repulsion and attraction?

Magnetic repulsion and attraction have many practical applications, such as in electric motors, generators, and transformers. They are also used in magnetic levitation trains, MRI machines, and speakers. In addition, magnetic repulsion and attraction are utilized in many everyday objects, including refrigerator magnets, credit cards, and computer hard drives.

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