Question

Where does the current come from? Geodynamo theory

a) The Earth's magnetic field is generated by:
a) Convection currents in the molten outer core
b) Convection currents in the solid inner core
c) The rotation of the Earth
d) Interaction with the Sun

Answer 1

The current that generates the Earth's magnetic field comes from the convection currents in the molten outer core, while the Sun's magnetic field is generated by the churning of turbulent layers of ionized gas in its interior.

Step-by-step explanation:

The current that generates the Earth's magnetic field comes from the convection currents in the molten outer core of the planet. As the liquid metal circulates in the core, it sets up a circulating electric current, which in turn creates a magnetic field. This phenomenon is known as the geodynamic theory.

On the other hand, the Sun's magnetic field is generated by a dynamo in its interior. The churning of turbulent layers of ionized gas generates electric currents, which produce the Sun's magnetic field. These magnetic fields from the Sun's dynamo interact, break, reconnect, and rise through the Sun's surface.

In summary, the Earth's magnetic field is generated by convection currents in the molten outer core, while the Sun's magnetic field is generated by the churning of turbulent layers of ionized gas in its interior.