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The electromagnetic field of metal bar moving across geomagnetic field in a conducting half-space

The electromagnetic fields of a horizontal electric dipole and arbitrary current element on a metal bar are derived employing the Hertz vector method. According to this result, the expressions of the electromagnetic field generated by the metal bar moving across a geomagnetic field are obtained. This study is the theoretical basis of further research on the electromagnetic field of a ship moving across the Earth's magnetic field in water.