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TWC59
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Since we have such a strong magnetic field around the earth, why does it not interfere with smaller magnetic fields we use such as medical equipment, radio wave progagation and other things that creates an magnetic field ?
A magnetic field is a region of space where a magnetic force can be detected. It is produced by moving electric charges and can be represented by magnetic field lines.
Earth's magnetic field has a significant influence on smaller magnetic fields, as it creates a protective shield around our planet that deflects harmful solar wind particles. This can alter the direction and strength of smaller magnetic fields within the Earth's atmosphere.
Some examples of smaller magnetic fields affected by Earth's magnetic field include the magnetic fields of compass needles, animal migration patterns, and the aurora borealis (or Northern Lights).
Yes, Earth's magnetic field is constantly changing and can even reverse its polarity. Scientists believe that these changes are due to the movement of molten iron in the Earth's outer core.
Earth's magnetic field creates a barrier around our planet that deflects charged particles from the sun (known as solar wind) away from Earth's atmosphere. This protects us from the harmful effects of these particles, such as damage to satellites and disruption of electronic systems.