What is the dynamo effect?

(N/A) The dynamo effect is a physical process that explains how a celestial body,such as the Earth,generates its magnetic field.
It occurs in the Earth's outer core,which consists of molten iron and nickel.
As the Earth rotates,the molten metal in the outer core undergoes convective motion due to heat from the inner core.
This moving,electrically conducting fluid interacts with the Earth's existing magnetic field,inducing electric currents within the fluid.
These currents,in turn,generate their own magnetic fields,which reinforce and sustain the Earth's overall magnetic field.
This self-sustaining mechanism is known as the dynamo effect.