Electromagnetic fields can also be divided? There are. Electrostatic fields, where there is no change with time (Static Field or? DC Field), for example, the electric field between the? Cloud and the earth. Magnetically ? Magnet Earth's magnetic field Etc.
The other type is the electromagnetic field that are changing over time (Dynamic Field or? AC Field), for example the electromagnetic field caused by the transmission system AC power? (50 Hz) and communication systems and so on.
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