the magnetic fields of jupiter, saturn, uranus and neptune arise from where?

Answer 1

From the planets you just mentioned.

Answer 2

They are not thought to arise from iron cores like the Earth's actually. They are too massive for those and Jupiter in particular has by far too great a magnetic feild for it to come only from the core.

On Uranus and Neptune it is thought that a solid icy core surrounded by a slushy or liquid layer creates a magnetic feild.

On Saturn and Jupiter the magnetic feilds are likely due in small part to their cores but are amplified by Metallic Hydrogen. Metallic hydrogen is a great conductive material that can exist on these massive worlds because "inside" them the pressures become so great that the hydrogen molecules are squeezed very closely together. So closely, in fact, that their electrons float freely between them.

Answer 3

The only reasonable explanation is that these planets, like earth, have iron cores.

I knew that Jupiter has a very strong magnetic field and that Saturn has a weak one. I didn't know the Uranus and Neptune did. Jupiter's is strong enough that you can monitor it with a simple homemade radio telescope.

Answer 4

the earth has also it's magnetic field which comes from it's own core and possibly the magnetic fields of the mentioned planets come from their respective cores and even from the planets themselves

Answer 5

The metal core. It can be hydrogen so dense it forms the magnetic core.....or iron, nickel, etc.

Answer 6

Elmo and the cookie monster

Answer 7

A, is the correct answer