Friends Please tell about Geographical poles and magnetic poles. And differences between them . What is the purpose of them in magnetism. Please give correct answer.
Answers
When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole. ... The geographic north and south poles indicate the points where the earth's rotation axis intercepts earth's surface.
Geographic north (also called "true north") is the direction towards the fixed point we call the North Pole. Magnetic north is the direction towards the north magnetic pole, which is a wandering point where the Earth's magnetic field goes vertically down into the planet.
Magnetic Poles of the Earth.Its location is determined by the direction a compass points. The spinning tendency of the Earth creates the geographic poles. The presence of the Earth's magnetic fields due to its interior structure. It is the place where the axis of rotation intersects its surface.
The Earth’s Geographic Poles are opposite to its Magnetic Poles. The Earth’s magnetic field is just like the one produced by a huge bar magnet at the center of Earth, with the North Magnetic Pole corresponding to the South Geographic Pole and South Magnetic Pole corresponding to the North Geographic Pole. Therefore if a compass is pointing at the North, it means it is pointing at the Geographic North Pole but also at the Magnetic South Pole. That actually makes sense if you think about it. The needle in the compass is magnetized, so it can actually be considered as a magnet, so it’s magnetic north pole is supposed to being attracted to the Earth’s Magnetic South Pole, which is at the same time the Geographic Norton Pole. The Earth's magnetic dipole originates in molten iron deep in the Earth’s core and extends more than 10 Earth radii out into space on the side facing the Sun, plus all the way to the Moon's orbit on the opposite side. Magnetic field lines loop out of the South Geographic Pole and into the North Geographic Pole. The mgnetic field lines are close together near the magnetic poles where the magnetic force is strong, and spread out where it is relatively weak. The magnetic axis is tilted at an angle of 11.7 degrees with respect to the Earth’s rotational axis.
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