Electric Currents in Planetary Magnetic Fields

[bmor]

The magnetic fields of several planets in our solar system are from what I've read caused by electric currents - does anyone know what the electric currents are caused by?

 

[malawi_glenn]

maybe some references would be good for us(me) what you are looking for.

 

[AFG34]

I think the current is generated inside the planet.

 

[bmor]

What I found in a book on our solar system was that Jupiter and the other gas giants were believed to have their magnetic fields caused by electric currents inside the planet. What I was specifically looking for was the cause of these electric currents.

 

[malawi_glenn]

ionized gas? The Sun has magnetic field due to its ionized gas. Jupiter, Saturn, Uranus and Neptune might have high enough temperatures in their centra to have their gas inoized.