
2-2-B螺線形線圈磁場
Quiz
•
Physics
•
9th Grade
•
Medium
Carrie Kan
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14 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
電磁鐵起重機可以輕而易舉吸起大型廢鐵,依據的是哪一種原理?
磁鐵同極相斥
廢鐵具有磁力
磁鐵異極相吸
電磁鐵通電後,具有磁性
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
將壞掉的電風扇拆掉後,可以看到下列哪一種物品?
迴紋針
馬達
指北針
蓄電池
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者不是屬於電磁鐵的應用?
門鈴
腳踏車
磁浮列車
電話
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
果汁機的內部具有下列哪一種裝置,可以帶動絞刀轉動,將水果打碎變成果汁?
馬達
螺絲
開關
變速器
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如附圖所示,明偉將一個螺旋形線圈前後分別放置甲、乙兩根磁棒,則當按下開關後,甲、乙兩磁棒的移動方式為何?
甲向右移、乙向左移
甲向左移、乙向右移
甲乙皆向右移
甲乙皆向左移
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如附圖所示,至偉於螺旋形線圈右側置一磁棒,按下開關後,磁棒向左移動往線圈靠近。根據此現象,可推斷線圈上的電流方向為何?
電流由甲流出
電流由乙流出
在甲乙間來回不停的變換流向
沒有電流產生
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
世華在通有電流的銅線附近放置一個羅盤,他應該不會發現下列何種現象?
磁針偏轉角度因為電流加大而變大
離銅線越近,羅盤磁針偏轉角度較大
羅盤放在銅線的上下左右,偏轉方向都不變
離銅線越遠的羅盤,指針方向較不受影響
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