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A magnetic field is induced by the movement of electrons.
In an electromagnet, the flow of current ensures this.
In a permanent magnet; there is a grouping of 'magnetic domains' in which the alignment of the spin of a group of electrons is similar; will produce a permanent magnetic field. In this case the movement of the electrons is their property of 'spin'.
The Earth's magnetic field is generated by the net sum of electric currents generated in the mantle, produced by movement of the hot materials.
Note, that the 'Curie Point' (discovered by the Curies), is a temperature above which a magnet may not hold its magnetism. The thermal disorder takes precedence over the previous alignment of the electron spins.
Because of the Curie Point, there is no possibility of a permanent magnet existing in the interior of the Earth and causing the Earth's magnetic field.
The Earth's magnetic field varies with time, and has reversed its polarity on several occasions. It also varies somewhat with the effects of the charged 'solar wind'. When there is a 'mass coronal ejection' and if it happens to face the Earth at that time, the Earth's magnetic field will be severely disrupted.
In the 1859 'Carrington Event' such a storm caused much damage to the electric circuits of the day. Such an event today could well essentially destroy modern civilization.
One such Coronal Mass Ejection occurred on July 2012, but fortunately was pointed away from Earth.
What else can I help you with?
Earth's magnetic field results from the spinning of the?
The earths magnetic field results from deep in the earths core. Magnetic conduction from within the earths core is believed to be the cause of this.
Where does the earth's magnetic field get its power from?
earths magnetic field is generated by the circulation of liquid metal.
Why does the magnet attract iron objects?
the magnet attracts to iron by the magnetic field both the iron and the magnet have
How does the Earths magnetism help us find your way?
As such till now there is no proper or valid theory to prove or explain the cause of earth's magnetic field. A bar magnet or a magnetic compass alligns itself in the direction of earth's magnetic field. This process happens as south pole of magnet alligns itself to north pole of earth n vice versa true north pole is southpole of magnet. Exact location of places can be done by calculating the magnetic flux density n various other factor . . . . . .
How do you test the lifting strength of an electromagnet Such as how many pounds can a specific magnet lift. How to test magnet strength in the field.?
the magnetic field of a magnet is measured through Gaussmeters.
What is one of using a bar magnet as a model of earths magnetic field?
HHSHHS
Earth is what kind of magnet?
Its an electro-magnet - currents flowing through the iron core.
How a compass can be used to trace the magnetic field of the magnet?
A compass can be used to trace the magnetic field of a magnet by placing the compass near the magnet. The needle of the compass will align with the magnetic field lines, allowing you to visualize the direction of the field. By moving the compass around the magnet, you can map out the shape and direction of the magnetic field.
How is earths magnetic field similar to that of a bar magnet?
electric current in a solenoid coil
What is one benefit of using a bar magnet as a model of earths magnetic field?
HHSHHS
How do you know that there is not a huge permanent magnet at the earths core?
For one, the magnetic field changes continuously; this is not consistent with a permanent magnet.
What is the difference between the earths magnetic field and a bar magnet?
The Earth's magnetic field is generated by the movement of molten iron in the outer core, while a bar magnet is a permanent magnet made of a material that can be magnetized, such as iron. The Earth's magnetic field is much weaker and more complex than that of a bar magnet, which has a consistent north and south pole.
Where is the magnetic field the strongest on a magnet?
The magnetic field is strongest at the poles of a magnet.
What causes the magnet compass to react with a magnet?
a compass works by detecting the earths magnetic field. a magnet also has amagnetic field just not as big so the compass needle points at the magnet ratherthan towards north.Another AnswerThe compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
The area around an object that is affected by the magnetism of that object is the?
A Magnetic Force
Where is the field around a magnet strongest?
Where is the magnetic field around a magnet strongest? Answer: A magnetic field is strongest around the poles. Your welcome! :)
Where is the magnetic field the strongest on a bar magnet?
The magnetic field is strongest at the poles of a bar magnet.
