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why is one terminal of an electrolytic capacitor is market with negative (-) symbol and why is this important?
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2 Answers
- 異域秦後人Lv 76 years agoFavorite Answer
It contains liquid paste chemical as its insulation, so that a small size capacitor has very large capacitance can be made, but it ends up has polarity between two poles. As wrong polarity power source applies to its poles, insulation becomes breaking down and heats up even explore. that is why a negative sign is marked on one lead as a warning to user.
- JOS JLv 76 years ago
an electrolytic capacitor is what is called polarized similar to a diode.
If you reverse the voltage the electrolytic capacitor will act like a short