barfield.jpg (7603 bytes) Magnetic Fields barfield.jpg (7603 bytes)

  • Planetary and solar magnetic fields are thought to arise in a fluid, conducting interior
  • Magnetic fields arise from circulating electrical currents generated by the object’s rotation

This is referred to as the

Dynamo Effect

If A Planet Has A Fluid, Conducting Interior, And It Rotates Rapidly Enough, It Will Have A Magnetic Field

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