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Physics 6 Online
OpenStudy (anonymous):

why isnt Earth's core a permanent magnet? please answer simply

OpenStudy (ujjwal):

The Earth's core is much too hot to be permanently magnetized. I am not sure how hot--more than 3000 deg C I think--but permanent magnetism disappears around 500 deg. or lower, depending on the material.

OpenStudy (experimentx):

According to google, the temperature of lava is around 1300 to 1800 ... core must be much hotter.

OpenStudy (ujjwal):

yeah, and that prevents earth from being a permanent magnet.. i guess..

OpenStudy (anonymous):

in Google we trust

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