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When the north pole becomes the south pole.
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∙ 10y ago
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How do scientist know the measuremnt of the earth mantle and core?
Because of the difference/wavering in the earths magnetic field due to thwe fact the inner core is largely Iron....
How were the reversals of the Earth's magnetic field discovered?
The reversals were seen by archeologists in ancient pottery shards.
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.
Is the earths gravity the same as the magnetic field if not what is the difference in effects?
i dont know its aload of bumf go away :p
Who said the magnetic field theory?
Tesla was a very important scientist and he said the magnetic field theory. It was a very significant theory and today we all know about the magnetic fields. A pop band has also used this name too.
Region around a magnet in which magnetic force can act?
Magnetic freild
The closer together a magnets magnetic field lines are?
The stronger the magnetic field is.
How do scientist know that magnetic field originate from north always?
There are two kinds of magnetic poles. It is just a matter of convention that we *define* one of the north. Then we *define* the direction of the magnetic field to be the direction of force experienced by a test north pole. Magnetic field lines and their directions don't really exist, they can only be observed indirectly. It follows from our definition that they must originate in the north poles.
The region of magnetic force around a magnet is know as it's?
Magnetic field
What are the earths two kind of protection against solar winds?
Earth itself is largely protected from the solar wind by its magnetic field, which deflects most of the charged particles; however some of the charged particles are trapped in the Van Allen radiation belt. XxBaby Dee
Evidences through which you get to know that earth has magnetic field?
A compass.
Scientist know that the moon does not have a magnetic fieldthis probably means that the moon does not have?
movement in its core.
