
3上_電子元件
Authored by Vincent Chen
Education
8th Grade
Used 6+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列有關使用電器的敘述何者錯誤?
電線及延長線不需綑綁
電器設備不用時,應將插頭拔掉
為了不浪費空間,延長線上可以插滿使用
電器設備附近不放可燃物
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電線是用來連接電子元件,一般會以導電的材質,例如:鐵、銅、銀、金等作為電線的材料。請問上述何者電阻值較小?
鐵
銅
銀
金
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於發光二極體的敘述,何者錯誤?
是一種具有方向性的發光電子元件
主要發光的部分是封裝體裡面的晶粒
元件的兩隻接腳無正、負極之分
紅綠燈為發光二極體的應用之一
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問一般家裡常用的碳鋅 4 號電池(AAA),其一顆的電壓為幾伏特?
110V
220V
3V
1.5V
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
每晚睡前阿晴都會聽個睡眠音樂,他將音響的音量降低,避免吵到隔壁鄰居;阿晴將音響的音量降低是使用旋鈕來調降電阻的電阻值,以達效果。請問他所使用的是哪一種電阻?
光敏電阻
可變電阻
熱敏電阻
精密電阻
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問一般時鐘常用的碳鋅 3 號電池(AA),其一顆的電壓為幾伏特?
110V
220V
3V
1.5V
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何種電阻可透過感測外界溫度,達到溫度回饋之效果,像是冷暖氣設備防過熱感應裝置?
精密電阻
可變電阻
光敏電阻
熱敏電阻
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