1. See Dynamo theory to see how the Earth's magnetic field is created and changes. 2. This is called the frozen flux approximation which is widely used in dynamo theory . 3. The dynamo theory holds that planetary magnetism arises as inner flows of metals produce electromagnetic fields. 4. The Dynamo theory proposes that these movements produce electric currents that, in turn, produce the magnetic field. 5. He was important to dynamo theory , hence his most important work concerned the source of the Earth's magnetic field. 6. :The key is dynamo theory . 7. Dynamo theory suggests that convection in the outer core, combined with the Coriolis effect, gives rise to Earth's magnetic field.8. Humphreys claims that the measured values where within the bounds of his predictions, while dynamo theories had been incorrect about Uranus'field. 9. This means that dynamo theory was originally used to explain the Sun's magnetic field in its relationship with that of the Earth. 10. In physics, the "'dynamo theory "'proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field.
Mobile