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njshenxian
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12樓  發(fā)表于: 2018-12-22 21:42
這個(gè)問(wèn)題是電子電路沒(méi)學(xué)好，電容的放電時(shí)間是tao=RC，根據這個(gè)來(lái)算，估算出電路等效電阻R來(lái)，再試下，差不多了。
jack1009
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13樓  發(fā)表于: 2018-12-27 08:28
引用
引用第12樓njshenxian于2018-12-22 21:42發(fā)表的  :
這個(gè)問(wèn)題是電子電路沒(méi)學(xué)好，電容的放電時(shí)間是tao=RC，根據這個(gè)來(lái)算，估算出電路等效電阻R來(lái)，再試下，差不多了。


哈哈...是啊...一直以來(lái)我都不是個(gè)好學(xué)生.
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