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Electrets
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Electrets are the electrical equivalent of permanent magnets—they carry a permanent positive charge at one surface, and a permanent negative charge at the opposite surface. The most remarkable thing about them is that, theoretically, they cannot exist! Yet they do exist, posing a problem that has not yet been solved.
Title: Electrets
Description:
Electrets are the electrical equivalent of permanent magnets—they carry a permanent positive charge at one surface, and a permanent negative charge at the opposite surface.
The most remarkable thing about them is that, theoretically, they cannot exist! Yet they do exist, posing a problem that has not yet been solved.
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