The shape of Earth's magnetic field resembles that produced by a laboratory bar magnet.

Name: The shape of Earth's magnetic field resembles that produced by a laboratory bar magnet.
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Earth's magnetic field can be approximated as a magnetic dipole, meaning it has north and south magnetic poles similar to a bar magnet. However, the field is also more complex due to the effects of the Earth's rotation and the presence of electric currents in the Earth's core.

The Shape of Earth's Magnetic Field Resembles That Produced by a Laboratory