Moving electric conductors generate magnetic fields.
The molten portions of the Earth's core are conductive and there are so many free elctrons in the lava that electric currents are induced generating magnetic fields as the hotter iron and nickel rich liquefied minerals flow away from the center of the core to be replaced by cooler minerals.
One result of convection currents in Earth's outer core is the generation of Earth's magnetic field. As the hot, molten iron in the outer core moves in a circular motion due to convection currents, it creates a dynamo effect that generates the magnetic field.
Convection currents
No. Convection currents are the result of a temperature difference between one depth and another in fluid.
The effects of convection currents in the mantle are an overall movement of magma, the shifting of plates, and the even distribution of heat. This helps to reduce the amount of earthquakes and volcano eruptions.
Yes, winds are examples of convection currents. The uneven heating of Earth's surface by the sun creates temperature variations that cause air to rise and fall, creating convection currents that result in winds.
Circulating currents in a fluid are commonly referred to as convection currents. These currents arise due to the movement of the fluid caused by temperature differences, which lead to the transfer of heat within the fluid. Convection currents play a significant role in processes like ocean currents and the movement of air in the atmosphere.
The entire Earth spins. No layer has a rotation rate the differs significantly from the rest of the planet. If any layer did the results would be catastrophic. The magnetic field is the result of convection currents in the outer core.
Convection
The Earth's magnetic field is the result of electrical currents flowing in the earth.
Essentially, yes: the Sun's heat creates convection-currents.
No, convection currents can vary in strength and direction depending on factors such as temperature gradients, fluid properties, and boundary conditions. In general, convection currents result from the movement of fluids due to differences in temperature, but the specific behavior can be influenced by a variety of factors.
The Earth's magnetic field results from electric currents in the mantle and outer core around the iron solid core; every electricmagnet is prduced as a result of electricity flowing around a iron core - the same principle works in our own magnetic field.