sequential (61) - Chemistry
https://kamchihau.blogspot.com/2022/11/httpskamchihau_12.html
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Ref: https://wodewangzhishime.blogspot.com/2022/05/httpswodewangzhishime_28.html .
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Me: Some capacitor is polarized. .For example, electroylsis capacitor. . But, some capacitor is poleless . . For example, Ceremic capacitor
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John: After the charge is completed, discharge can be towards left or towards right.
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Me: At the same times, if you charge it, you can charge it from the left or from the right.