6 Answers biffle1 month agosome people say to use penut butter… but if the gum is dry some times u can pick at it and…
its a telugu movie…5 Answers ?8 days agoYou can watch it in youtube also can download it by using internet download manager or just searching…
如果LED燈要加電阻,要加在燈前還是燈後,為什麼????如果LED燈要加電阻,要加在燈前還是燈後,為什麼????5 Answers 陳二2 decades ago在LED串一顆電阻,主要的目的是在做限流使用的而要串在燈前還是後呢…那是沒有差別的….因為在等效電路中….壓降是不分前後…. KVL(克希荷夫電壓定律)LED燈的電壓+限流電阻之電壓=電源電壓 0 Anonymous7 days ago這有類似的▶▶http://qoozoo1400703.pixnet.net/blog0 YNQBIXFPCNRL7 days ago到下面的網址看看吧▶▶http://*****/0 赤兔馬1 month agoLED之所以要加接一顆電阻是因為要保護LED,這是避免迴路中電壓升高或電流升高,超出LED本身所能承受的上限值而導致LED燒毀。 所以既然加電阻的目的是為了要保護LED,當然電阻就該加在LED的前面,也就是接在LED正極的前面。這樣電過來,先經過電阻再到LED,如此才能達到保護LED的作用。不然電阻裝到LED的後面去那就失去保護的作用囉。0 erich6422 decades ago沒有差別,因是串聯迴路,壓降及電流都一樣.如果是多顆LED的話,請在每一個LED串一個電阻,才不會互相影響亮度不均.0
around me fits fine.. so would i go up to a DD or would it be E? lol i am so confused! the number 38…
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