To generate a planetwide magnetic field requires a body to rotate and to contain some liquid that is electrically conductive. What is believed to be the source of the magnetic field of Enceladus?
A) molten nickel-iron, as on Earth
B) salty ice water
C) liquid metallic hydrogen, as on Saturn
D) Enceladus is too small to generate its own magnetic field, so this must be an induced field, caused by the presence of Saturn.

Question

Quizplus · Accepted Answer

The magnetic field of Enceladus is believed to be generated by salty ice water. This is because Enceladus has a subsurface ocean of salty liquid water, which can conduct electricity and, in conjunction with the moon's rotation, can generate a magnetic field.

To Generate a Planetwide Magnetic Field Requires a Body to Rotate