Information about the magnetism of the earth
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Earth's magnetic field is a magnetic dipole, similar to that of a bar magnet tilted 11° from the earth's axis of rotation.
The magnetosphere protects the earth from solar wind, which is a stream of charged particles ejected from the sun.
It is believed that the magnetic field of earth is due to dynamo effect. Dynamo effect is caused by the motion of metallic fluids in the outer core of the earth which results in electric current. It is because of this electric current that the earth has its own magnetic field lines.
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