
111-2 生科 9下 總複習

Quiz
•
Education
•
9th Grade
•
Hard
塗老師 塗老師
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72 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在完成USB風扇調速器的電路中,為何不直接將555 IC銲接在電路板上,而是在電路板上銲接IC插座,再將555 IC裝上?
增加電壓
增加電阻
避免555 IC因銲接不良而損壞
避免意外導通其他元件
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
製作風扇調速器時,材料中的「杜邦線、排針」功能為何?
避免銲接元件接腳時意外導通其他元件
避免555 IC因銲接不良而損壞
方便連接可變電阻、USB孔座等外接元件
調整輸入電壓高低,控制風扇轉速
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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