Where does the earth's magnetic field originate?
singleAnswer
Earth's core core
Earth's magnetic field
Where does the earth's magnetic field originate?
Earth's magnetic field Van Allen radiation belt Cosmic ray Coronal mass ejection Stellar magnetic field Magnetosphere Mercury's magnetic field Magnetosphere of Jupiter Magnetic field Geomagnetic secular variation
The <b>Earth&#39;s field originates</b> in its core. This <b>is</b> a region of iron alloys extending to 
about 3400 km (the radius of the <b>Earth is</b> 6370 km). It <b>is</b> divided into a solid inner
&nbsp;... A Van Allen radiation belt <b>is</b> a zone of energetic charged particles, most of which 
<b>originate</b> from the solar wind, that are captured by and held around a planet by 
that planet&#39;s <b>magnetic field</b>. <b>Earth</b> has two such belts and sometimes others may 
be temporarily created. ... By trapping the solar wind, the <b>magnetic field</b> deflects 
those energetic&nbsp;... Cosmic rays are high-energy protons and atomic nuclei which move through 
space at nearly the speed of light. They <b>originate</b> from the sun, from outside of the 
solar system, and from distant galaxies. Upon impact with the Earth&#39;s atmosphere
, cosmic rays <b>can</b> produce showers ... In addition, the <b>Earth&#39;s magnetic field</b> acts 
to deflect cosmic rays from its&nbsp;... A coronal mass ejection (CME) <b>is</b> a significant release of plasma and 
accompanying <b>magnetic field</b> from the ... CMEs most often <b>originate</b> from active 
regions on the Sun&#39;s surface, such as groupings of sunspots associated with 
frequent flares. ... When the ejection <b>is</b> directed towards <b>Earth</b> and reaches it as 
an interplanetary&nbsp;... A stellar magnetic field <b>is</b> a magnetic field generated by the motion of conductive 
plasma inside ... This <b>is</b> the case with the <b>Earth&#39;s magnetic field</b>, which <b>is</b> 
generated by turbulent currents in a viscous outer ... Field lines from this field 
<b>originate</b> at one magnetic pole on the star then end at the other pole, forming a 
closed loop. On the dayside of <b>Earth</b>, the <b>magnetic field is</b> significantly compressed by the 
solar wind to a distance of approximately 65,000 kilometers (40,000 mi). <b>Earth&#39;s</b> 
bow&nbsp;... Mercury&#39;s magnetic field <b>is</b> approximately a magnetic dipole apparently global, 
on planet ... Although Mercury&#39;s magnetic field <b>is</b> much weaker than <b>Earth&#39;s</b> 
<b>magnetic field</b>, it <b>is</b> still strong enough to deflect the solar ... The magnetic field 
itself <b>is</b> thought to <b>originate</b> from the dynamo mechanism, although this <b>is</b> 
uncertain as yet. The magnetosphere of Jupiter <b>is</b> the cavity created in the solar wind by the 
planet&#39;s <b>magnetic</b> ... As with <b>Earth&#39;s</b>, Jupiter&#39;s <b>magnetic field is</b> mostly a dipole, 
with north and south <b>magnetic</b> poles at the ends of a single <b>magnetic</b> axis. ... The 
particles in the radiation belts <b>originate</b> in the outer magnetosphere and are 
adiabatically&nbsp;... The <b>Earth</b> produces its own <b>magnetic field</b>, which shields the <b>Earth&#39;s</b> ozone layer 
from the solar wind and <b>is</b> important in&nbsp;... Geomagnetic secular variation refers to changes in the <b>Earth&#39;s magnetic field</b> on 
time scales of about a year or more. These changes mostly reflect changes in the 
Earth&#39;s interior, while more rapid changes mostly <b>originate</b> in the ionosphere ... 
Secular variation <b>can</b> be observed in measurements at magnetic observatories,&nbsp;...
Earth 's interior
Earth's magnetic field