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6 January, 04:07

What are the basic requirements for a terrestrial world to have a global magnetic field?

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  1. 6 January, 04:17
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    There must be differences in temperature, pressure and composition within a liquid metal core inside the planet, since this produces a motion of the liquid metal, generating electric currents, which produce magnetic fields, that align, combining their effect to produce a large field Magnetic that envelops the planet.
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