Last Updated:2025/11/20

During the demonstration, the students observed how magnetic polarity determines the direction in which iron filings align.

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During the demonstration, the students observed how magnetic polarity determines the direction in which iron filings align.

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実演中、生徒たちは鉄粉が整列する方向を決める磁気の極性(北極または南極である状態)を観察した。

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