生活科技9上康軒1-1
Quiz
•
Other, Education
•
9th Grade
•
Practice Problem
•
Hard
Vincent Chen
Used 17+ times
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
我們可用下列哪一個條件來判斷附圖電阻的電阻值?
電阻的長度
電阻的廠牌
電阻的色環
電阻的重量
2.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
下列何種電子元件作為電子開關時,能增強電子訊號?
電阻
電容
二極體
電晶體
Answer explanation
二極體:單項導通
電晶體:小電流控制大電流
3.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
列關於附圖電阻器的敘述,何者正確?
接腳有極性之分,安裝時應注意正負極性
只允許電流單向流動,逆向時形成斷路
可用於調節電路中流過的電流
通電時,具有儲存電荷的功能
4.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
下列元件中,何者的接腳數量與其他三者不同?
色碼電阻
陶瓷電容
整流二極體
電晶體
5.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
有些電子元件的接腳有正負極性之分,使用時須留意有沒有接錯;下列哪一種電子元件沒有極性之分
6.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
信元想在電路中增加一個能感應光線變化,進而自動開關的裝置。請問他可以選用下列哪一種電子元件來感應光線,然後再進一步控制電器的運作?
太陽能電池
光敏電阻
發光二極體
電容
7.
MULTIPLE CHOICE QUESTION
30 sec • 8 pts
下列關於電容器的敘述,何者錯誤?
能夠暫時儲存電力
陶瓷電容接腳沒有極性之分
電解電容接腳有極性之分
電解電容短腳為正極、長腳為負極
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