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What poles attract and what poles repel?
A magnet has two ends called poles; one end is the north pole and the other is the south pole. A north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away. We say the magnets repel each other.
Why are repulsion and magnetic poles attracted?
Inside the iron bar are tiny magnetic regions called domains. When two opposite magnetic poles are close, they attract each other. When like poles are pushed together, there is a force of repulsion. The rule for magnets is that like poles repel and unlike poles attract.
Why do magnets repel and attract?
Magnets are surrounded by an invisible magnetic field that is made by the movement of electrons, the subatomic particles that circle the nucleus of an atom. Magnets attract when a north pole is introduced to a south pole. If like poles are introduced, either north to north or south to south, the magnets repel.
What is opposite pole?
The ends of a magnet are called its poles. One end is called the north pole, the other is called the south pole. Opposite poles attract each other, but similar poles repel. The Earth acts like a giant magnet. Its invisible magnetism helps animals such as birds, bats, sharks, and mice to find their way around.
Why magnets have north and south pole?
The force of a magnetic field on a particle with spin causes the particle to rotate it’s spin to align with the magnetic field. Taking these two ideas together, then, the Earth’s magnetic field will cause the magnet to align north to south. That’s why people named them the north and south poles.
Why does Unlike poles attract?
Unlike-poles attract: When a north pole and south pole point together, the arrows point in the SAME direction so the field lines can join up and the magnets pull together (attract).
Does magnet have pole?
Magnets have two poles, a north pole and a south pole. The magnetic field is represented by field lines that start at a magnet’s north pole and end at the south pole.
Why do like and unlike poles of a magnet repel each other?
So the like poles repel each other. When the unlike poles of a bar magnet face each other the magnetic lines of force are in the same direction and hence unlike poles attract each other. The force of attraction or repulsion which is present between two magnetic materials is known as a magnetic force.
Why do unlike poles attract each other?
When unlike poles are brought together, it decreases the total amount of energy in the magnetic field. Total energy is constant, so that energy comes from the agent that moves the poles together. That agent has work done into it as it moves the poles together. That is another way of saying that unlike poles attract each other.
Which poles repel the like-poles?
Both electric and magnetic poles repel the like-poles. This characteristics is considered basic law of nature – there is no deeper explanation of the electromagnetic force.
Do polarities attract or repel?
The observation is that there appear to be two polarities and like polarities repel and unlike polarities attract.