what is the difference between magnetic north pole and geomagnetic north pole? what is nearer to geographic north pole??a magnetic north or a magnetic south??????
Asked by kothari_prachi
19th January 2011,
11:03 PM
Answered by Expert
Answer:
Dear student,
The Magnetic North Pole is the northern point at which the geomagnetic field points vertically, i.e. the dip is 90°.
The Geomagnetic North Pole is the pole of the Earth's geomagnetic field closest to true north.
The difference between the North Pole and the Magnetic North Pole is that the former is a geographic pole with a stationary location at 90-degrees North. This geographic North Pole, also known as true north, is the fixed northernmost point on earth from which all points lie south. The Magnetic North Pole is not based on true north, but on the magnetosphere of the planet. The Magnetic North Pole lies hundreds of miles from true north, with its exact position constantly shifting.
The magnetic South Pole is that point where a magnetized compass will
point if deployed in the Southern Hemisphere. This pole moves, or
wanders, and now sits off the coast of Adelie Land; it has moved over
500 miles since its first discovery in 1909 by the Australian Douglas
Mawson and his party.
The geomagnetic South Pole is the theoretical pole of the earth's
magnetic field. If you could look at earth from a far enough
distance, and envision the magnetic field caused by its molten iron
core, that magnetic field would resemble the pattern that iron
filings will make around a magnet. The two dipoles in that pattern
would be the geomagnetic North and South Poles of that magnet;
similarly for the planet.
Hope this helps.
Team
Topperelarning.com
Answered by Expert
20th January 2011,
9:45 AM
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