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What is the difference between the magnetic poles and the geomagnetic poles?
The Geomagnetic poles (dipole poles) are the intersections of the Earth's surface and the axis of a bar magnet hypothetically placed at the center the Earth by which we approximate the geomagnetic field. There is such a pole in each hemisphere, and the poles are called as "the geomagnetic north pole" and "the geomagnetic south pole", respectively. On the other hand, the magnetic poles are the points at which magnetic needles become vertical. There also are "the magnetic north pole" and "the magnetic south pole". The geomagnetic or magnetic south (north) poles correspond to the N (S) -pole of a magnet.
Where is a bar magnet's pull strongest?
A bar magnet is strongest at its ends, or poles. This is because there is a magnetic field, or B field, that is produced by the magnet itself. The magnetic field can be represented by magnetic field lines, which enter one end of the magnet and exit the other.For instance, in a bar magnet, the magnetic field lines emerge from the north pole of the magnet and enter the magnet at the south pole. Since a magnet has two poles, it is said to be a magnetic dipole.The magnetic field lines are most closely packed together at the poles, since it is a short distance to the opposite pole of the magnet. This is why a bar magnet is most effective at short distances. Picking up a paperclip from a centimeter or two away is much easier than trying to magnetically attract a paperclip to a magnet from a distance greater than five or six centimeters.
Do magnetic fields around a bar magnet curve around the ends of the poles?
Yes, magnetic fields around a bar magnet do curve around the ends of the poles. The magnetic field lines emerge from the north pole and curve around to enter the south pole, creating a closed loop. This curvature is a characteristic of magnetic fields, illustrating the direction and strength of the magnetic force in the surrounding space.
How are the earth and a bar magnet similar?
Both the Earth and a bar magnet have magnetic fields that extend outwards from their poles. They both have a north and south pole orientation, and like poles repel while opposite poles attract. Additionally, they both have the ability to interact with other magnetic materials in their vicinity.
True or false the magnetic poles are not located exactly at the geographic poles?
True. The magnetic poles move constantly.
On a bar magnet where are lines of magnetic force the greatest?
near both magnetic poles
Where is the magnetic field the strongest on a bar magnet?
The magnetic field is strongest at the poles of a bar magnet.
What is the distance between the two poles of bar magnet?
Magnetic equator.
Do bar magnets have south and north poles?
Yes. All magnets of north and south poles. There is no such thing as a magnetic monopole.
What is the interaction between the magnetic fields of two bar magnets?
When two bar magnets are brought close together, their magnetic fields interact. Like poles repel each other, while opposite poles attract. This interaction is due to the alignment of the magnetic domains within the magnets.
Why are the poles of a bar magnet not situated at the extreme ends of the magnet?
The poles are situated at the ends of the bar magnet. The magnetic lines of force run through the magnet, emerge from one end, fold back around the length of the bar of the magnet, and curl back into the other end. The ends are the magnetic poles, and the magnetic lines of force emerge from one and re-enter the magnet at the other. You can see these lines by laying flat a piece of smooth paper over the magnet and sprinkling iron filings over the paper. Because they are light they will be easily moved into alignment by the magnetic field and will visually show the fields arrangement. (Using a piece of paper makes it easy to tidy up. Without it, the filings will stick to the magnet and be difficult to remove.)
How does a bar magnet interact with the magnetic field around it?
A bar magnet interacts with the magnetic field around it by creating a magnetic force that attracts or repels other magnets or magnetic materials. The magnetic field around the bar magnet is strongest at the poles and weaker in between, causing magnetic materials to align with the field.
What is the meaning of pole when describing earth?
Earth has two pairs of poles, the geographic north and south poles and the magnetic north and south poles. The geographic poles are the two places where Earth's rotational axis, the imaginary line that represents the center of Earth's rotation, intersects the surface of the earth. The magnetic poles are where Earth's magnetic field diverges/converges, just like the poles of a bar magnet, except that Earth's north magnetic pole is comparable to the south pole of a bar magnet, and Earth's south pole is comparable to the north pole of a bar magnet. The locations of the geographic poles never change, but the magnetic poles wander around from time to time. In fact when studying the floor of the Atlantic Ocean for the first time scientists found evidence that the polarity of Earth's magnetic field completely reverses every few hundred millennia (the north and south magnetic poles switch places).
What is the difference between the magnetic fields of horseshoe and bar magnets?
The magnetic field for a bar magnet is fairly circular around the whole of the magnet, with the north and south poles at opposite ends. The magnetic field for a horseshoe magnet, however, only arcs in front of the two ends, as both are pointed on the same end.
How did the magnetohydrodynamics affect the world?
It probably explained how the Earth had magnetic poles similar to that of a bar magnet.
What will like poles of bar magnets do?
Like poles of bar magnets will repel each other, due to the magnetic forces between them pushing them apart. The repulsive force will increase as the poles get closer together.
How is a coil of wire that carries a current similar to a bar magnet?
A coil of wire carrying a current generates a magnetic field, similar to a bar magnet. Both have north and south poles, with the direction of the magnetic field lines determined by the direction of the current flow in the wire or the orientation of the bar magnet's poles.
