Generating Electricity From Earth S Magnetic Field

A proposed device interacting with this component would extract energy from the earth s rotation to produce electric power.

Generating electricity from earth s magnetic field. On earth flowing of liquid metal in the outer core of the planet generates electric currents. The image below shows the range of frequencies for different forms of electromagnetic radiation found in the electromagnetic spectrum. Generating power from earth s magnetic field would be ridiculously impractical near the surface. Tapping into earth s rotation.

Consider for a sense of scale the energy density in the magnetic field near the earth s surface. Although the earth s magnetic field is not aligned exactly with the planet s rotation axis there is a component of the field that is symmetric about this axis. The field is 5 gauss which means an energy density of 0 001 j m 3. The first and second charged bodies are spaced apart in a direction substantially normal to the earth s surface.

A point that hasn t been covered is that even with a wire loop rotating through the earth s magnetic field you still wouldn t generate that much electricity. A changing magnetic field does. The earth s magnetic field does change a tiny bit but not enough to really generate much. Earth s magnetic field also known as the geomagnetic field is the magnetic field that extends from the earth s interior out into space where it interacts with the solar wind a stream of charged particles emanating from the sun the magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the earth s outer core.

The other option is to move the inductor in the magnetic field. This magnetic field makes compasses work and is also used by pigeons and fish to navigate. A system for generating electricity from the geomagnetic field and rotation of the earth is presented. We are always in the earth s magnetic field which is generated at the earth s core.

The earth s magnetic field is quite homogeneous over short distances though so the coil would need to move fast and very far to generate much. The rotation of earth on its axis causes these electric currents to form a magnetic field which. Nicola tesla powered an electric car without the use of a battery drawing power apparently from the earth s electro magnetic field.