通電的電磁鐵與磁鐵一樣具有N極和S極,但是電磁鐵如果斷電後,只會剩下N極或S極。

111學年度六上自然4-2-4-3

Quiz
•
Physics
•
6th Grade
•
Hard
戴 士涵
Used 4+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
對
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
漆包線與我們一般看到的電線類似,外面都有一層不導電的絕緣層。
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
指北針的指針除了會受到磁鐵和地磁的影響而偏轉,電流也能讓指針產生偏轉。
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
通電的線圈具有磁性,可以吸起迴紋針等鐵製品。
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
電熨斗和果汁機都是具有電磁鐵的裝置,所以才能正常運作。
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將電線接上電池後,無論電池的擺放方向如何,通電的電線都會產生磁場,都可以使指北針的指針偏轉。
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7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在電池電力都相同的情況下,串聯兩個電池的電磁鐵會比並聯四個電池的電磁鐵,吸引更多迴紋針。
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