0
How is earth's magnetic field like the magnetic field of a natural magnet?
Wiki User
∙ 10y ago
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.
Wiki User
∙ 9y ago
Wiki User
∙ 10y agoBoth of them have North and South Poles,both have magnetic field lines, and boht exert forces
Wiki User
∙ 10y agoThe Earth IS a natural Magnet. It has a North and South Magnetic Pole, and magnetic Flux lines between them. The magnetic Field attracts magnetic materials and charged particles.
Add your answer:
Earn +20 pts
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 does the Earths magnetic field resemble?
That of bar magnet..
What is one of using a bar magnet as a model of earths magnetic field?
HHSHHS
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 a compass can be used to trace the magnetic field of the magnet?
The pull of the magnet will over ride the earths magnetism. So the compass will react to the magnet as it passes through its field.
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.
Earths magnetic field can make a magnet out of an iron bar by causing the magnetic domains to?
align in the same direction, creating a magnetic field within the iron bar. This alignment occurs due to the interaction between the Earth's magnetic field and the magnetic properties of the iron, resulting in the iron bar becoming magnetized.
Compass magnets can only be deflected by electromagnets such as Earth's magnetic field?
This is FALSE. TWICE!The Earths magnetic Field is not Electromagnetic.A compass can be deflected by any Magnet.
Does a compass work best when close to magnet?
No. Being near a magnet (or magnetic field) completely puts off the compass as the compass is influenced by it and will not align with the Earth's natural magnetic field.
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! :)
