Space plasma moving through a magnetic field generates its own electric current, can act as a unipolar inductor, and conducts electricity better than metals, e.g. the heliospheric current sheet above, and Birkeland currents.
![Heliospheric current sheet](https://www.plasma-universe.com/wp-content/uploads/Heliospheric-current-sheet_edit.jpg)
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Space plasma moving through a magnetic field generates its own electric current, can act as a unipolar inductor, and conducts electricity better than metals, e.g. the heliospheric current sheet above, and Birkeland currents.