Translations:Dictionary:Self-exciting dynamo/1/en

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{{#category_index:S|self-exciting dynamo}} A dynamo that produces a magnetic field around itself so that motions of an electrical conductor cutting the magnetic lines of force generates the current that keeps the dynamo turning. Such a mechanism is proposed as the source of the Earth’s magnetic field in the Earth’s core. The interactions of two or more such natural dynamos may explain the periodic reversals of the Earth’s magnetic field.