若發現電源提供的電流量太大,可能損毀電路上的電器,可以用下列哪一種方法處理?
美濃國中九年級生活科技線上段考

Quiz
•
Instructional Technology
•
9th Grade
•
Medium
陳冠霖 老師
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
在電路中串聯電阻器
增加開關的數量
減少電路上連接的電器
在電路中串聯電晶體
2.
MULTIPLE CHOICE QUESTION
1 min • 4 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
3.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
下列關於附圖電阻的敘述,何者正確?
接腳有分極性,安裝應注意正負極
只允許電流單向流動,逆向時斷路
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
1 min • 4 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
5.
MULTIPLE CHOICE QUESTION
1 min • 4 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
1 min • 4 pts
演唱會上,觀眾拿著加油棒隨著音樂擺動。有一種特殊的加油棒,搖晃時電路就會導通,使其中的LED發光。試問這種加油棒最有可能使用哪一種開關當作觸發裝置?
滑動開關
震動開關
磁簧開關
按壓開關
7.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
黑夜降臨時,回家路途上的路燈自動亮起,到了天亮又自動熄滅。試問這個路燈有可能是使用哪一種電子元件當做控制燈亮的裝置?
色碼電阻
可變電阻器
熱敏電阻
光敏電阻
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