The Earth's magnetic field varies from point to point in space ? Does it also change with time?If so , on what time scale does it change appreaciably?
(PHYSICS CH-5 Magnetism And Matter CLASS 12)
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Yes, the earth's magnetic field varies from point to point in space and it also changes with time. It may change daily, annually of secularly with period of order of about 1000 yr. It may change irregularly during magnetic storms, etc. The time scale for appreciable change is about few hundred years.
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Yes, the earth's magnetic field varies from point to point in space and it also changes with time. It may change daily, annually of secularly with period of order of about 1000 yr. It may change irregularly during magnetic storms, etc. The time scale for appreciable change is about few hundred years.
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