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The magnetic domains of an unmagnetized material will be pointing in random directions, which is why it is appearing to me unmagnetized. In a magnetized material, they move from north to south.
True. In a magnetized material, most of the domains are indeed aligned in the same direction, creating a magnetic field.
It all depends on the way in which the iron's 'domains' are aligned. Iron is inherently magnetic as a material, but can become demagnetized as time goes on, due to sudden impact or when affected by another magnetic source. For iron to become magnetized 'domains' need to be in parallel with each other so the magnetic field created all flows in the same direction. An unmagnetized iron source has all of its domains misaligned A brief explanation of domains are a series of positive and negative charged atomic particles within the iron itself which behaves much like tiny magnets themselves.
The iron automatically divides into domains separately. It does not exist in a state when magnetization occurs in the same direction, in the entire material. This is to minimize its internal energy.
North and South Poles
In an un-magnetised nail there are tiny domains, each in themselves would be a little magnet, however, in a magnetized steel nail the magnetic "domains" tend to be lined up in the same direction. A domain is a tiny magnet because electrons are spinning with the same orientation. Refer to the related link in the Related Links section below for more details.
A piece of iron doesn't behave as a magnet on its own because the magnetic domains within the iron are not aligned to create a magnetic field. In order for the iron to become magnetized and exhibit magnetic properties, an external magnetic field must be applied to align the domains.
Each magnetic domain has a magnetic field. When an external magnetic field is applied, the magnetic domains will partially align, so the magnetic fields reinforce one another - instead of canceling one another, which is what happens when they are randomly distributed.
If the two forces acting on an object are not lined up, the object will experience a net force that is a combination of the two forces. This will result in the object accelerating in a direction that is a combination of the two forces, based on their magnitudes and directions.
Magnetic domains align to minimize energy. When aligned, the magnetic moments within a domain reinforce each other, creating a stronger overall magnetic effect. This alignment is driven by the exchange interaction and can be influenced by external magnetic fields.
Actually, magnetic domains are regions within a magnetic material where the atom's magnetic moments are lined up in a preferred orientation, contributing to the overall magnetic properties of the material. These domains can be influenced by external magnetic fields and play a role in the material's magnetism.
The number 1.4 billion can be visualized as 1,400,000,000. This number is equivalent to 1.4 thousand million or 1.4 x 10^9. In terms of physical objects, if each object represents one unit, you would need 1.4 billion objects lined up in a row to represent this number visually.