Albert Einstien was the first to detect the presence of magnetic field in earth
Scientists believe that it is the movements in the liquid outer core that create the magnetic field. Earth's magnetic field affects the whole planet.
If you mean the region of influence of the earth's magnetic field then its called the earth's magnetosphere
Assuming there is no Earth magnetic field, and no other significant magnetic fields, they will not allign in any preferred direction.
You can't. The only thing the earth's magnetic field can tell you is the direction from where you are toward the earth's magnetic pole. That doesn't tell you anything about where you are.
Yes
In that it has a magnetic field - which can be detected by a compass needle.
The magnetic field. If it's an electromagnet, the electromagnetic field.
Well you could either directly measure the magnetic field produced by the electromagnet. Something as simple as a compass shows the presence of a magnetic field. Or you could measure the electric current induced by the magnetic field.
In that it has a magnetic field - which can be detected by a compass needle.
In that it has a magnetic field - which can be detected by a compass needle.
Plants don't have a significant magnetic field. Perhaps you mean "planets"?
a magnetic field
The earth as a single object has a magnetic field. If Uruguay is part of the earth, it shares the earth's magnetic field.
The Earth's magnetic field is the result of electrical currents flowing in the earth.
The Van Allen belts are caused by Earth's magnetic field. Charged particles are deflected in the presence of a magnetic field.
Scientists think that the presence of the molten nickel iron layer of Earth's outer core and the spinning of the planet creates the magnetic field through the geodynamo mechanism.The geodynamo mechanism couples the convection of the liquid metal in the Earth's core with the magnetic field to create the current responsible for the magnetic field.Other planets with a molten metal core can also have a magnetic field.See related links.Earth's magnetic field is generated by the electric currents in the conductive material of its core.
A lodestone is magnetized and thus produces a magnetic field around it. This can be detected by the deflection of a compass needle.