當電線平行擺放在指北針上方時,發現指針向右偏轉,若將電線改成垂直擺放,指針可能會如何偏轉?

南一國小自然6上CH4-2

Quiz
•
Science
•
6th Grade
•
Medium
南一 自然
Used 72+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
向右偏轉
向左偏轉
一直旋轉
不會偏轉
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小南想製作實驗用的漆包線圈,哪一種做法比較不適當?
漆包線要沿同一方向纏繞
要刮除漆包線兩端的漆
選用直徑為0.5mm的漆包線
漆包線的纏繞圈數必須在5圈以下
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
漆包線圈在通電前後都能吸起迴紋針嗎?
通電前無法吸起,但通電後通常可以
通電前能吸起,但通電後無法吸起
通電前和通電後都能吸起
通電前和通電後都不能吸起
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種狀態的漆包線圈具有磁性?
通電前
通電後
通電前後都有磁性
通電前後都沒有磁性
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將電磁鐵與一般磁鐵互相比較,下列哪一個地方不相同?
異極相吸
同極相斥
須通電才有磁力
具有N、S極
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當電磁鐵的電池漸漸沒電時,電磁鐵會發生什麼現象?
磁力增強
磁力漸漸消失
N、S極顛倒
沒有任何改變
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項不是電磁鐵的特性?
須通電才有磁性
會吸住鐵製品
磁力永遠固定不變
具有N、S極
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