What two important factors are occurring in the outer core to allow earth to have a magnetic field?

The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

Explanation:

Instead, Earth's magnetic field is caused by a dynamo effect.

On Earth, flowing of liquid metal in the outer core of the planet generates electric currents.

The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet.

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